Seriously, if you keep asking questions about how fit the A4 is for drums you’ll look back on these comments and go, why did I ever doubt it 
there are more envelope shapes in the A4 than virtually any other synth I know, only a waldorf may have some additional modes or extended shapes, but for every possible way to do conventional envelopes the A4 has them all and some are really cool, it’s a powerhouse - shame they don’t loop or have delay, like DSI stuff but other than that and including the one shot lfo shapes, all bases are covered
There isn’t one voice in a RYTM that is more powerful than the ones in A4 (leaving aside sample play) … go figure, it’s not tailored to do cymbals, but you’ll get passable stuff there, all else is on the money and so much more than just a TR mimic
Druma is essential to hear the potential
Really usable sounds, yet there is still an infinite playground for percussion sounds