Yamaha DTXpress/DTXplorer/DTXtreme

Hi,

I'm new to drumming and to my fresh DTXpress that came in yesterday. 
I'm just an ordinary guy in Hong Kong and wanna drum better. So I 
ordered this cool thing for home practice.

Alright, please allow me to ask a few questions:

1. I put the pcy60 up on the left as the crash and the pcy80s on the 
right as the ride. I set it this way as I don't need more than one 
sound from my crash. Normally I play the ride in 2 way: tapping the 
flat (ding, ding, ding-ding; ding, ding-ding ...) and hitting hard on 
the edge for a splash. The flat on the pcy80s works perfect for me; 
however, the rim is choking too much. When I go for a double hit on 
the rim, the second hit just chokes (mutes, I prefer) the first. I, 
personally, don't need choking at all. In fact, a tp80s is also in 
the package and I use it as the snare. Though hard hitting is needed, 
the rim produces rimshot without choking or any other problem. So, 
are the pcy80s and tp80s physically different that the choking is 
produced by the pcy80s' switch but no by the tp80s'? Or is it just a 
setting in the brain for ride cymbal that I can disable?

2. What is the difference between A and B on the high hat controller? 
What about the A / B polarity switch on some of the pads? The manual 
explains that the switch's for sensitivity, but it never tells me 
whether A is higher or lower ...

3. I am totally lost when I read the part regarding self-rejection 
and specific rejection in the manuel ... may someone here brief me a 
little bit please? In fact, when I play some faster grooves that has 
notes with simultaneous hits of closed hi-hat, snare, and bass drum, 
the snare doesn't sound. Are these rejection settings the ones I 
should look into?

Thanks in advance

Regards,
Lychee