When I was returning from Hawaii
,near the Pacific High,we had the misfortune of running over a huge ball of abandonded driftnet.Got caught on homebuilt self steering rudder
at stern(full length keel).It bent 2in. stainless shaft back about 30deg.,had to launch dinghy
in 12ft. seas and remove bolts on bracket to get rudder
to straighten.With three on board, we managed to bend relatively straight and remount.all went well and still worked,continued on our homeward leg.Try sailing in the PNW in spring and count the huge logs
and deadheads,they are everywhere!Still safer than driving at 100kph.I agree with Brent,steel is way to go,maybe my next boat.