I have a buddy looking to put a Mac's River Runner Mac's River Runner, Prop Protection & Accessories, Boating Outboards & Accessories, Boating : Cabelas.com on his 25hp mariner thats on the back of his supreme boats trout fishing boat he use on the white river. Has anyone use one of them before? How while do they hold up to rock and shallow water?
I got one for my 50 hp and it was like putting a bucket out the back. It is a great idea but is stole a lot of power.