Originally Posted by rvbuilder2002
.020 " free play at the the trailing edge is totally fine.
I've examined the trim tabs on several RVs with the mechanical push/pull cable control system and I was surprised how much play they had...it's been years now since I looked at one, but I want to say the TE of the tabs had something like 1/4" of play, maybe more. I remember thinking they could be at risk for flutter, but there are a lot of older RV's flying around like that and I've never heard of it being an issue on any of them.
So yeah, .020 is probably a long way from having anything to worry about.