Last summer I purchased a new 19' bowrider with 4.3 Mercruiser. When I first looked at the boat I noticed the skeg was bent, not bad but obvious if you looked. The dealer said the lower unit would be replaced and it was. Being an outboard man for 30+ years I knew almost nothing about the mechanics of an I/O. Being a do it yourself guy and after studying this forum and factory manuals for the last 6 months I'm beginning to think back on the bent skeg. There were no dings so I assume the boat was probably backed into something while the I/O was full up and starboard. I have just over 20hrs on the boat and have not had any unusual noise or vibration and probably won't until the 2yr warranty expires. Any thoughts from the pros would be appreciated.