I have the keel guard on mine and its been on there for 3 yrs without a hitch. Hasnt tried to come off anywhere. Gave about 120 bucks for it Donnie. Feesh and I put it on in about 1 hour. Had a buddy with a ranger that was watching us put mine on and he had us put one on his the same day. Both still look good as new. The main thing to it is cleaning the surface that it will be put to. Use the cleaner to remove any and all grease or oil residue because this is what will cause it not to stick. As far as Hambys I cant say because I have never used one. I know this if mine will last as long as it has for 120 bucks, it sounds better to me than 4 5 or 6 hunnert. JMO