Diamond Advice?

My peak rank in BOPS 6 was D1, but got roughly halfway to D2.

I literally just hit D1 on BOPS7.

Any other difficult exercises I should do to be successful in Diamond? Any advice? I feel confident in my ability to laser everything/have good recoil control with my M15 and MPC, just wondering what else would make me a solid Diamond player.

Goal: Get to D2.