Yamaha DTXpress/DTXplorer/DTXtreme

As far as I know, the only difference between the TP100 and TP120 is
the size.  Quite a few people use them on the DTXpress.  I use the
TP100.  The TP120 is larger, but I thought would probably be a bit
big, although it would be easier to fit onto a standard snare stand
without pushing it too high or having to modify the stand.

They have a slightly different feel to the TP65, but not much
different.  The rim is slightly more raised which I prefer.  They have
an easily accessible volume control which is handy, and a red knob
that will do nothing on the DTXpress I, II or III, but will work on
the DTXpress IV.

I haven't heard anyone complain about them and they are reasonably
priced so go for it!

Keith.