you would have to talk to them on material. I put on a stainless but i also have a shaft saver installed that is designed to break and not transmit the loads to the transmission, to i think with a stainless shaft and strutt im better off. It it gets enough load to bend it it will breakthe shaftsaver first and the prop would stop before all that stuff breaks. It is interesting to know what you guys are hitting. also a set of line cutters of one brand or the other woud cut off most things before you bent the shaft or strutt.