I agree with JTL - much better lines without them. When I specced out my Plus 4 I asked for no tread rubbers - and I'm very pleased with the result. No discount for NOT having them, though.
Same for me. Can't see the point of 'em. Nick
I had them installed due to folks feet damaging the paintwork.
Geneva 2016 plus 8' The Green Godess' 4 side exits .