The D spring is OK, I like it. But nevertheless it not the trigger pull on the gun, but your pull on the trigger that is causing the problem, with a possible dose of sight adjustment thrown in. The Beretta is sighted for a really hot 124 gr round (the NATO round). try keeping you ammo in that arena(probably the best loads are in that wweight anyway) and see how you do. I use 125-35 gr loads in all my 9s and most of them seem to like it.