I used to run bass boats and the Mississippi river is not kind to lower units and props, so I had three accidents where I lost the lower unit. Twice the motor blew up shortly after. So now with my V-bottom boats I use aluminum, and I send the props in a couple years to get fixed, which isn’t cheap. It doesn’t take much to bend blades, a little twig will do it but it’s better than ruining an expensive SS steel prop, lower unit or blown motor. These days they can make plastic stronger than aluminum, and even if it doesn’t sound right it is true. I know because I tried to modify a prop once to see if I could get it to go through weeds better and I hack sawed quite a bit and then tried to break it off but I couldn’t. I took a hammer to it and stuill wouldn’t break. Now aluminum doesn’t take much at all to bend or break. So far this prop is performing well, pops right out of the hole and hits a few branches and no problem. If I do damage a blade, I can replace blades individually and I have three spares, and they aren’t very expensive.
I just bought a composite stabilizer from Piranha Props and if all goes well I will be able to keep my kicker motor without porpousing like it does now. Should save on gas too, maybe pay for itself. .
That composite prop is working out well.
Update 5/17/13 – I love that stabilizer and the prop is holding up well, still like new. The stabilizer allows me to raise the motor up while running on plane without porpoising like it was doing. It helps the steering as well. I don’t have any complaints at all, it even looks nice on my boat. I would highly recommend these.