The D spring is the way to go. With it, the DA pull is around 8.5 and the SA is around 4.5.
I have about 4k rounds thru my carry 92, so it's a little lighter.
The round you shoot CAN make a difference. I can shoot 115gr FMJ and it hits perfectly where I want. But 115 JHP Critical Defense will shoot about 2 inches low. For defensive rounds, my nine 92s like 124gr JHP.
Do realize that the 92fS does not use a 6 o clock hold for the sight picture.
Use sight picture #3 for the Beretta (this is commonly the solution for people who do not realize that you need sight picture #3)