I've actually had better luck using a miked snare than triggered signals in drumagog. The transients seem to be pretty big using triggers. While this isn't as big of an issue with rolls, applying drumagog to a triggered roll ends up sounding more artificial that way, IME. it's easier for me to use the mic signal and set it to dynamic tracking. And, if I'm using 100% gog tone, I may automate it to back off a bit to allow the natural snare tone to blend in. This is more apparent on a dynamic roll with accents and such, and it seems to work well for me. I've also automated the HPF on the cymbals to allow more room ambience to add to a more dramatic drum roll (i.e. one that is more of a background marching effect rather than a rolled fill), but only if the snare is pretty much the only drum making noise, if that makes sense.