Re: Winterizng 5.7GL
I think most people who take the the "air won't freeze" view and store the block drained do so because they don't have the bucket and hose setup and/or don't want to be pulling hoses and spilling antifreeze in the boat. There are some folks = I suspect most of the shops in my area - who don't even bother to drain the engine/hoses and just run with the anti-freeze through the muffs, but they just run it on the muffs for a long time and end up wasting more antifreeze until they hit the point where from a business standpoint they've done it 1,000's of times and don't get many failures. You don't have to pay the boat to idle itself, but you do have to pay your mechanic to pull hoses.
Anyway, if it was me, I'd spend the $15 for a few more gallons of antifreeze and either run it on the muffs again or pour it into the block, but I'm one of those who never felt comfortable with the "air doesn't freeze" approach - I always figure air has moisture and moisture and moisture condenses on cold metal.