Oh yeah... Impressive.
I'm not sure how "most" create their own drum tracks.
I don't have a midi drum set and I seldom use the "preset" patterns.
I do use some fills but when writing I tend to hear a very specific pattern
so being able to program would benefit me greatly.
Trying to create rolls/fills on midi keyboard is not fun!!
I'm a bit intimidated by SD so I've lived in an EZ world...