[garysanfran]

I will be installing these on a 27' aluminum dock to accommodate a 20'-24' I/O like a Cobalt bowrider. There are wooden removable platform boards on the surface so the mounts would have to be mounted to the alum. frame with the brackets bolted vertically to the outside.

Size of whips? Roller tips? Brands? Would West Marine be a good source?

Thanks for any help you can provide...