Yeah I know you can't just drain the block, the exhaust manifold needs drained as well. Is kind of a pain this time of year though to have to put antifreeze back in after each use.. you would think there would be an easier way around that.. or maybe I am just lazy
As far as the gear lube, the boat should have come with a manual for the engine and outboard that details the gear lube monitoring/changing process. I know mine came with a whole pile of literature but those things have a tendancy to vanish over the years.
The weather this week should be good for boating with lows just barely getting into freezing. That should make for a bit warmer water temperature towards the end of the week so I plan on hitting the lake again next weekend in search for some trout.