The only drum synth I'm remotely familiar with is Jamstix. I got it originally because it was AI and could create a track based on a number of factors. One of the interesting features about it was that no matter what you inputted for it to play, it was intelligent enough to not try to play a 3 armed drummer part. It even factored in stick travel based on which arm was holding the stick and the distance to the drum depending on what the other hand was doing. In other words.... no impossible to play parts. Of course, there was an override switch to allow you to write impossible drum parts and it could play them. I never got into it deep enough to see what it would do with the same part on larger or smaller kits.

As long as the drummer held the groove in the pocket.... what else really mattered?

Once I found BB, I stopped using practically all synths.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.