Elektron Musical Instruments

If I want to program patterns, etc., I obviously need the Machinedrum. My other -- and
potentially 
primary -- use, however, is probably driving it from my HandSonic. That's where things
like MIDI 
velocity and CC information become interesting. Am I correct that about all I get to
control on the 
Machinedrum without diving into parameter locks is volume?

There's also the issue of sound production. The Rack Attack has a moderately sophisticated

synthesizer model, but it's clearly oriented toward synthetic sounds. How well do the
physically 
modeled drums on the Machinedrum do? I'm not looking for exact replicas of specific
sounds, but I 
am interested in something that sounds more organic rather than synthetic (spoken as
someone 
who makes moderately heavy use of the 808 kick drum sample on the HandSonic).

Thanks.
Mark