[Destroyer]

Originally Posted by bradford

Yep... what they said.

Destroyer, Skool's Out use to call those transom destroyers be cause they would do more harm than good for a transom. The slight rocking of the boat on the trailer would push on the engine because the boat and trailer were not the same if you can visualize that.

I figure they're made by the same folks who make "submersible" trailer lights, rubber coated anchor chains, boat horns, stainless hose clamps with black iron screws, boat trailer brake systems, those hollow black keel rollers that put all the weight on the white plastic bushings and hold water to rust out the roller pin...........

I use http://www.ebay.com/itm/350917672435...%3AMEBIDX%3AIT You'll still get the water in the inside of the roller, but the aluminum pins don't rot out nearly as fast.. especially if you paint them with zinc chromate before you install them.
As for the transom savers, they are only effective if you strap you boat down onto the trailer tightly with a belly strap so it can't bounce up and down. If you use the transom straps that just go from the trailer to the tow rings on the transom you allow the boat to move up and down with bumps in the road, which is what Schools is talking about I think.
My favorite beef is the stainless hose clamps you mentioned, followed closely by the "submersible" lights.