I've seen the paint thing on the Yokomo BX before and thought "I must do that" but yet at the weekend I was still struggling away setting the diff without the paint on there and wondering why it wasn't easier.

Will have to break out my white paint some time.
I like the LRP diff covers

. I used my slightly smaller inner diameter diff covers at the weekend - but I used a dab of silicone grease to stop the cover sticking to the out drive and also to give a better seal, instead of the paper backing.
It only did one race meeting but I took the cover off anyway since I had the car apart, and its all nice and clean in there.