Connector Comparison Test: Comments and Suggestions Please
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  1. #1
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    Connector Comparison Test: Comments and Suggestions Please

    Folks;

    Having seen a lot of competing claims for connectors over a couple of years, and having installed a number of connectors, I thought it would be interesting to collect some actual DATA on how connectors affect trigger pull weight. Just plain old objective data. Nothing subjective, like how it feels, just how the various connectors actually affect pull weight. I thought it would be refreshing for us as consumers.

    If you agree, read on.

    My plan is to acquire a brand-new Glock G21SF pistol, and to test it with several different connectors:

    Glock standard connector as delivered in the G21SF
    Glock "-" Connector
    GlockTriggers Performance connector 3.5#
    Lone Wolf Distributors 3.5# connector
    Zev Tech V3 Race connector
    Scherer 3.5# connector

    The gun will be in New In Box condition. I will clean it, but I will not polish anything in the gun. I will apply a drop of CLP to the place where the connector meets the trigger bar.

    The connectors will also be in New In Box condition, exactly as received from the manufacturers. I will install them, one by one, run the tests, and record the data which I'll post on this forum.

    The test will be very simple: mount the Glock in a vise block to hold it steady, with the connector installed operate the slide and pull the trigger 20 times with a Lyman(R) electronic Trigger Pull Gauge, recording each reading individually. I will then calculate the average of the 20 pull weights, along with standard deviation (just for the heck of it).

    The trigger will be pulled by pulling the roller on the Lyman gauge directly against the tip of the trigger, because it is about the only way to catch the trigger consistently on the same place and pull it back straight. If anybody is curious about how this would work I can post a photo. If you put the roller right in the middle of the trigger and pull back straight, the roller tends to roll up to the middle of the trigger and fail to pull the trigger safety back, so it won't work. If you have suggestions about maybe modifying the trigger pull gauge to work especially well with a Glock, I would like to hear your ideas.

    If you want to add a connector to the test, just PM me and let me know, and I will give you shipping instructions. I will pay return postage. All you have is my word that I'll return the connector if you loan me one for the test.

    I have one big question: will the use of a Gen4 pistol be a problem for anyone? I believe that the geometry of the trigger mechanism housing has changed, but I do not know the details, and I would not want that to make the test results valid or questionable. I guess we could say that the results are valid only for Gen4 pistols. I don't have a NIB Gen3 to use, and I don't plan to buy (another) one just for this purpose.

    Comments? Thoughts?

    Chris
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    Great! Sounds like a good comparison, I'll be interested in the results. You're changing only the connector and not the trigger spring, right? From what I have read then, I would assume that the trigger pull would be greater than the 3.5# for the 3.5# connector.

    If you want to do a gen3 on one of your not NIB glocks, I would still be impressed as the gun being tested is the same for all tests.

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    Quote Originally Posted by haysmclean View Post
    Great! Sounds like a good comparison, I'll be interested in the results. You're changing only the connector and not the trigger spring, right? From what I have read then, I would assume that the trigger pull would be greater than the 3.5# for the 3.5# connector.

    If you want to do a gen3 on one of your not NIB glocks, I would still be impressed as the gun being tested is the same for all tests.
    Right, no trigger spring change. I don't have a Gen3 that doesn't have a polished trigger bar, but I DO have a new unpolished trigger bar coming from Glock. If it gets here before, say, Halloween, I might run the tests with a Gen3 as well.

    Also, I've come up with a way to trip the trigger more consistently: I'm making a fingertip out of wood that will attach to the gauge. No kidding. The Pinocchio Device. Stay tuned.

    Chris
    "Better to remain silent and be thought a fool than to speak out and remove all doubt."

    Abraham Lincoln



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    I am very interested in your upcoming test. I modded my G17 gen2 and G21sf gen3 exactly the same and the G21 came out about 1/2 pound heavier. My Sherer seemed a little smoother than the Wolf but close. I have a Glockworx connector coming and will let you know how it measures up compared to the Wolf 3.5. I too am using the Lyman scale.

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    Sounds great Chris. Looking forward to the results. Then you can do a G19. LOL
    In honor of AW2 Jason Lawson (The Law). We'll never forget you.
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    Chris-- I think work like this is incredibly important. I'd like to help if at all possible. Barring that, my only thoughts are that the Lyman trigger pull gauge will give a peak weight, which is great. But if you're going to put all this effort in, maybe we should have an even more detailed evaluation of the entire trigger length (i.e. what is the weight of the trigger for each incremental distance it's pulled back). There are some precision instruments for this and I have no idea how much it costs (maybe we can rent it): Dvorak Instruments Inc.

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    Quote Originally Posted by pistolcompetitor View Post
    Chris-- I think work like this is incredibly important. I'd like to help if at all possible. Barring that, my only thoughts are that the Lyman trigger pull gauge will give a peak weight, which is great. But if you're going to put all this effort in, maybe we should have an even more detailed evaluation of the entire trigger length (i.e. what is the weight of the trigger for each incremental distance it's pulled back). There are some precision instruments for this and I have no idea how much it costs (maybe we can rent it): Dvorak Instruments Inc.
    Pistolcompetitor,

    I have never even heard of that thing, but it sure looks impressive!

    I have done a couple of searches and can't seem to find a price, and they aren't answering the phone today (Saturday). I sent them an email asking for the price.

    From a quick look at their site, it looks like it needs to be connected to a Windows computer while it's being used, which is not a huge problem.

    Let's see what it costs.

    Chris
    Last edited by cohland; 09-15-2012 at 10:43 AM.
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    I am guessing more than a pair of Glocks for that instrument.

  10. #9
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    Quote Originally Posted by judgecrater View Post
    I am guessing more than a pair of Glocks for that instrument.
    I'm going to guess, just pure GUESS, at over $2,000. We'll see if they give me a price by email.

    What the heck, if you don't ask, the answer is always "no".

    Chris
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    Abraham Lincoln



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