I'm fairly new to boating with a large outboard with power tilt/trim. The other day I trailered the motor with it tilted up, with the tilt cylinder holding the motor up. I suspect I blew out a seal on the tilt cylinder from doing this. Is this not the correct way to position a motor for towing? What is the motor supposed to rest on (besides transom saver, which I just ordered) when towing?