Going through my parts stash for my 72 build and I have an opportunity to run either the original 72 top wiper windshield frame or a later 75 ish one. Both windshield frames are complete and in good condition and I don't have a top yet, so I can go either way. I've had both in the past but I don't remember which was better as far as wiper performance. Which configuration do you prefer? We will be moving to Washington state next year, so rain will be a more significant part of our lives than it is here in Los Angeles.