Yamaha DTXpress/DTXplorer/DTXtreme

Hello from Italy.
I play in a band performing only 80's and pure 70's Rock.
DTXII has very good sound set to play this music.

My real problem is the SNARE. Often my snare miss some beat...
or it reproduces Ghost notes.  

I think it's time to change the normal Yamaha PAD and buy a new one.
I would Pintech SNARE... but i don't know if "Pintech Acoustech 
Electronic Piccolo Snare"  plays better than "Pintech Concertcast" 

What is the best choice ??

Considering in Italy there is no way to buy it, can You tell me where 
can i take it ONLINE ??

Thanks for all.
Cikko