Yamaha DTXpress/DTXplorer/DTXtreme

Well, I'm lazy so I would just ditch the kit and buy a new one.  It
would save all sorts of possible compatibility issues with pads/module.

I learnt on a DTXpress III and now have an acoustic kit as well.  The
benefits to me of the acoustic kit are the wider dynamic range,
ability to use brushes & rods and a wider range of sounds from cymbals
& hi-hat just by how you hit them.  The disadvantage of the acoustic
kit are the limited range of sounds, slow to re-tune and they are LOUD.

The switch to acoustic is not too difficult.  The areas I have had
problems with are the kick drum bounce (although that possibly has
something to do with my chosen kick drum which is 18" unvented) and
hi-hat.  Getting the partially open hi-hat sounds I want seems to
require a lot more subtlety than I am used to with the DTXpress pedal.
 I guess an on/off hi-hat pedal may make the transition a bit more
difficult.

Keith.