After the chain gets high enough that it won't fall off you can switch to RAV RAV RAV. Also once they are staggered the percentage keeps going up, so having RAVs pile on the DPS is almost even more important when they are staggered than when you are building up to it.

You can also switch between COM RAV RAV and RAV RAV RAV every few turns or so. Build the first bit up with COM, then go RAVx3, then back to COM when the chain starts going down uncomfortably fast between attack rounds, and so on.