Maybe post in a general forum for more exposure?
This is not necessarily a model-specific RV-10-specific issue. You get to put in whatever brand of hat switch you choose.
I agree with the idea of making certain the servo current, while relatively low, is handled by a relay, not the switch contacts themselves.
I've had a home-brew trim board fail full nose up trim leaving for Sun N Fun one year - the result of the 4-buttons on top style of grip and resting an iPad on top of the stick during cruise-climb. Not a fun experience to return and land the 6A with the stick trying to get into my groin the whole way. I enlisted my passenger's help with countering the trim force. It was a workout.