Picked up a reproduction WAVE set fin to try something a little different in my 8'6" Weber.
Did discover that all WAVE sets are not exactly alike. While I did get the new white fin to fit, it did take a little modification with a rat-tail file in order to get the rear screw hole to line up.
New re-pro base is about a 1/4" shorter overall and I have an 1/8" gap both forward and aft in the box. Seems to seat OK so I just need some swell to go and test it out.