Id agree with JohnnyV, and maybe I should have said "if" I need to adjust AD2 mix levels, (other than just overall level in Sonar track), and probably also often (rather than sometimes) use piano roll to enhance sections and kit pieces and/or add things like, tambourine, bongo, hand claps, etc.
I often use something basic in AD2 for initial writing/recording with real instruments as click track, then enhance, or replace as my song develops, writing midi myself and/or using pre-set genres, fills, intros/outros, etc., from their song or beat midipaks libraries. However, within AD2 on each kit piece or buses adjusting, FX, mic placements, beat accents, randomizing time and velocity, exchanging certain kit pieces may help get the sound you want, I've even used multiple AD2 sessions/tracks, using different kits/pieces, hit types, percussions, etc.. (its hard to find a real drummer with 8 arms and legs, to reproduce l LOL).
Also Re: Groove 3, I've found its worth subscribing to, (@ ~ $100/yr), many good Sonar X1-to-Platinum specific tutorials, ("Mixing with Sonar" is one, albeit X1), as well as many "generic" mixing tutorials, also many on use of, generic and specific, current and legacy, EQ's, compressors, other FX's, VI's, DAW's, even on playing various real instruments, singing , etc...
(It may have helped me to determine I really didn't need to re-invest in Pro-Tools to do what I want).
Cheers