.http://youtu.be/vWyi62tCQEk..

You can see all the silt he stirred up with the props, can't be good for the ramp.

One of the many services the marina I work at provides is called Dry Storage. Basically, your boat sits on the trailer until you want to go out. You uncover it, call us and we drop you in with a tractor. When you're ready to come out, you call us and we back your trailer into the ramp. You drive your boat on and we take you back to your spot where you cover your boat up. Why do I bring this up? We have 64 dry storage boats and we require you to drive your boat onto the trailer. (Power loading) No cranking allowed. Enough said?

Did you miss the part in my post where there are signs on the dock saying NO POWER LOADING. Driving your boat onto the trailer and what I consider power load I.E. hammer the throttle to climb up a trailer that is not in the water far enough.

If you trim up the drive a bit before power loading you will be directing the prop wash up and away from the ramp and wont wash out the bottom. Trimming out also will help lift the bow making it slide more easily onto the bunks.

Exactly and you need no more power than idle, sometimes a touch more - maybe 1000 to 1200rpm. The boat with me in it is brought from its storage area; launched and loaded by tractor, never touches the dock. The car gets to sit locked up in the storage area out of the sun for the day also.

Didn't miss any part of your post. (I'm actually pretty good at reading stuff.) Just bringing up a related point.