I got a better idea.
Attach a trigger to the snare, sent that to the brain, and then have the MIDI trigger it via MyDMX.
Short of that, you can take a side-chain on a gate off the split insert out(in case you do need to insert). You can then use the sidechain out to then trigger a trigger to MIDI converter(a drum brain) and then do the same thing that way. Kinda cludgy but works good.