Sorry, but, I don't use Coyote and rarely use RealBand. Reaper, $60, handles plug ins well. I run SampleTank 3 in it all the time. I also have all the drum kits from ST2 inside of ST3 and they are decent. In case you didn't know; you can get SI Drums, Piano, Strings and Bass for free with a free download of Cakewalk by BandLab along with TTS-1 full GM soft synth. I prefer TTS-1 over Coyote. I use SI Drums often with good results. But it does not have all of the standard GM drum voices. Just a basic but decent drum kit with many alternate drum kits. I think ST2/ST3 are full General Midi drum kits but as far as I know there is no way to edit it's individual instruments other than changing velocities in your midi editor.
The reason I bring this up is I think you would like the drum sounds much better than Coyote.

Does the noise in your head bother me ?