I was there at the show. Bought a new GLOCK 26 for $500. I had the Guide Rod and Spring that supposedly reduce recoil for my GLOCK 30, works normal, just a little tighter but have not shot with it so cannot rate it. Also had it done for the 26. Got home, played with the 26 and can’t pulled the slide back, too tough. Took it back on Sunday, had to pay another $7 to get in. He said that spring is incorrectly installed. He replaced it. It work but you would have to muscle the pull. I played with it all night and it suck. It required too much force, 2 out of 10, I was able to pull it back and unable to use the slide release. Tried his site, no good. Tried calling but no pickup, no way of reaching the seller. I now just want my money back or trade the $50 for something else, maybe a trigger release extension.