Hi there just wondering if you have seen the tube vid's done by shooting at dawn https://www.youtube.com/watch?v=jV6RAO1i1A0&t=1s
or read the articles written by Hector https://www.ctcustomairguns.com/hect...he-walther-lgu he has done a fair bit of work on the LGU. Just a quick question you say that you opened the port on it but did you check the power after just wondering because my .22 as you say shot up quite a bit and needed 1 1/2 coils off to get it right the rifle now shoots great, I have not got a TX to compare it with but its a lot nicer than my Walther Century 0.22. I think you don't see kits out there as they are great already just a bit heavy, why spend all that on a rifle then have to spend out again to fix it to how it should be. All the best Graham.