Last time I was out at thunderbird, I hit a submerged stump while idling through a stumpy cove. Boat is brand new and I was worried...checked it on the trailer after we were done fishing and NOT EVEN A SCRATCH...Tracker diamond coated hull so I would have though at least the finish would be scuffed but it made me feel good about the decision to buy aluminum. Also, no wooden transom to rot out like fiberglass. I just felt like sharing; I do wish aluminum boats were rated for more HP though.