What kind of services are performed on 525's with XR drives at 100 hours?

Anybody???

I would advise you but my stuff never runs that long with out breaking or crashing, so I don't know what it is like to run 100 hours without a rebuild of some sort. Doug

I would have drives pulled check alignment, u-joints,gimbal ring, and gimbal bearing. change gearlube and oil. have the impeller changed pull the spark plugs and check maybe change.

At minimum, Oil and filters, drive oil changed, and drive pulled off boat to check alignment. If not and the alignment is off you risk damaging the gimbal bearing.