I have an EZ Loader trailer which has a rubber keel roller that needs to be replaced due to wear and disfigurement (flattening). I've seen replacement rollers made of either PVC or rubber. Which would you recommend, which type do you have, etc.? My thoughts are that the rubber ones would be softer on the boat hull but probably wouldn't last as long. The PVC rollers may be too stressing on the C-14.2 fiberglass hull. I'm not sure which way to go and would like some feedback before buying one. Sailing is on lakes and the roller would not be exposed to salt water. Thanks for your feedback.