Robert
I Have a couple of 2 screw Remington style single triggers, 2 are retrofit and one original. I shoot heavier loads than most all the folks on this board. I have never had one double. I am not talking one box of shells in a weekend. I may shoot 100 rounds a day "heavy loads" at pigeons in the snake river canyon. My old friend wanted to shoot my 34" Parker at doubles at the trap range. The gun doubled twice in 50 rounds. Not a doubt in my mind ((operator error.)) I can not explain why, but i do know it does happen with some people. Does the gun in question double when others shoot it??? Big hands little hands 100 rounds ONE DOUBLE maybe a flinch
(god forbid). good luck with the trigger.
David