Here's an interesting observation that made me decide to put the boat, decoys, and waders away for the season:
I hunted this past weekend (did nothing) and found the boat really poky and low riding by the end of the morning. I weighed it at the local landfill scale and went back the next day (thawed out) and found it 360 pounds lighter after melting off the ice. Some ice and water still remained on my grass blind.
My 1448 is rated for 4 passengers, so you can figure the ice buildup was worth 2 passengers. That means I was WAY overloaded with blind, me, decoys, etc. Consider that next time you hit the lake at 10 degrees. You definitely don't want to swim home on those days.