personally I dont zombie much and aim for flying zombies or flying chilldogs or flying kung fu move. for flying moves, I've got a few things I do,
1. if they just dig their hands in and sit there, then i reach my hands from the outside going in around the back of their elbows, grab on and pull out, this collapses their base and you can go right into some great positions.
2. is a 2 on 1 arm throw/drag. This is for where you cant get anywhere with them, they just want to hole up and wait. grab a 2 on 1. Throw them almost vertically up but at a slight angle, (I prefer to my head, but could be away from you too I think) let go of the 2 on 1 with your opposing arm to one you grab. and get a free new york. The opponent, generally focuses on the arm you grabbed and forgets about the other.
3. the basic climb up them and fall down grabbing their arm on the way down.
If you already have Mission control and cant zombie, then remembering the moves that dont need zombie are great. for instance. meat hook is probably the best; the mission pump is there as well.
Finally, dont get stuck in your ways. just because RG is amazing doesn't mean that you shouldn't change up your moves. sometimes I give up half guard and play lockdown, change to butterfly guard. start throwing up some guillotines or try and get a hip bump sweep or something. even better is when you switch to something and then switch back to RG, keep them guessing.