I have a bass tracker (alluminum of coarse) and i was curous about the hardness of fiberglass. I have several dents in the bottom of my boat where i have hit stumps, etc., I was just above idle!, and was wondering if fiberglass will break or crack under the same circumstance. I know when i've fished with guys in a ranger they will come across stumps and to my knowledge it doesn't hurt the fiberglass?? Any info on this be appreciated. I dropped a chair on the rail around my boat and it put a 4inch dent in it???