Karen,

What makes you think there is no sugar in the ice? I'm not sure I understand that reasoning. Personally, I'd just thaw the ice on a large volume of sap and expect the ice to have sugar. Teach me, please.

Dave, great video. One small comment, I get tons of sap overnight on certain days, you kinda made it sound like a daytime nighttime thing, but its really just getting the temps to shift...imo.