REMEMBER- You won't get that great Jazzy drum brush(41)sound  , Unless you have a module/soundcard or daughterboard with that specific Drumset included, as in SoundCanvas;etc.  Edirol is now making the comp-sound modules for Roland, and they're Dynamite-  Most of their new stuff is USB compatible, and they are all GS compatible and the Super Sound Canvas is midi2 compatible. The Amazing SC-8850 is a dream module with incredible samples.  The newest Roland module JV-1010 doesn't support GS, although it's a fine module.     If the drums sound funny - it's because your module doesn't have or doesn't accept the brushes drumset.  So change the part-  or even better- get a new module! A lot of the young drummers out there don't know about brush technique or their proper usage. A lot of times you only hear them on the latin cuts. Watch an experienced jazz drummer play with brushes. It's an art! Practice your stick rudiments with a set of brushes and feel the difference. Your stick technique will improve!