Yamaha DTXpress/DTXplorer/DTXtreme

Next weekend, I'm planning on doing an "annual maintenance" project 
with my kit.
I'm switching out all the cables, changing the heads on all the 
Pintech cc101, and, yes, I'm going to hit the factory reset button 
and rebuild all my kits.
Can anyone think of anything else I should do while I've got the 
monster down on its knees? 
Stephen