You can do a couple of things. IMHO sequencing as well as any kind of drum/percussion programing on the 3K will produce better results, regardless of where your sounds are coming from. I actually kind of like the sequencer on the ASR-10, but editing on it isn't as fun.
We talked about it here in this thread:
http://www.mpc-forums.com/viewtopic.php ... ht=#743261
I assume that since you started that thread you may have some additional questions, which I would be happy to answer if you provide specific details.
Are you still using reason+protools?
Do you want all of your sounds coming from the ASR-10?
Paul
p.s. While there is no great forum for EPS/ASR-10 users, the yahoo group mailing list is very good, and I highly recommend it.
http://launch.groups.yahoo.com/group/En ... R10-EPS16/