Frenchbruno, that's the same i want to do, only with some bigger blocks
! A collque of mine has a toolshop (he's going to quit), so he has some rough material left..
Hydrostream, thanks. Delrin is indeed heavy stuff!
Gar163y, do you maybe have some pictures?
4" aluminium would also be fine offcourse, but I was wondering for more options. I don't prefer plywood, but when you use a good polyurethane primer/varnish it can work indeed. Did you mount it between transom and lift?