When I put a replacement trigger in my 700 and the bolt lift was too heavy I filed down the cocking piece to take the pressure off it works fine now
I am trying to understand how filing on the cocking piece made it easier to lift the bolt after it was fired. The cocking piece still is being cammed back within the back of the bolt body and the firing pin spring still has the same strength... did you actually shorten the front of the cocking piece that engages the bolt body on cocking?