Yamaha DTXpress/DTXplorer/DTXtreme

Hi group. I am a new user of the DtxIIIS (newer HH sys and round 
cymbals). I am new to E drums (3 mos)and triggering. Unfortunately my 
kit doesn't react like the Demo videos etc. I reviewed the settings 
but don't quite understand them. There us much latency and 
intermittent triggers. Like if you hit the kick and a cymbal 
simultaneously, you only get one sound at times. What are the best 
trigger settings for getting as close to an acoustic kit. Recording 
is cool with it, bad settings (medium) and even (low) cause these 
misfires and I have to record tracks again. I heard/read about # 8 
setting but just am not sure I am going about this the right way. The 
manual seems user friendly, I'm just user imapired I guess. Is there 
a site that explains these settings/levels etc? Thanks for your help.

Mike