Yamaha DTXpress/DTXplorer/DTXtreme

Thanks guys for your replies, I will contact Drumbalaya. A quick 
search doesn't show any spares of this kind for Yamaha. I still do
not 
know if the Force Sensitive Resistor and rubber piece is available as 
spares anywhere. Protecting the bass drum pad was easy with extra 
padding on it, but their is no easy way around the HH65 problem.