Thought I'd give an update for Peru, ME. I tapped a 14" maple for a test southeast facing that gets sun most of the day on Sunday. This tree is always a "good runner" and it ran a bit Sunday then the wind and clouds shut it down today not much for sap. I think were close but not enough sun and warmth to thaw the trees, not until were in the 38 plus degree days more frequently with sun. I'm watching the weather but probably tap the weekend of the 23rd unless it warms like last year.
My Hobby??? I think?
2010 -120 Taps Gravity
2011 - 332 Taps Gravity
2012 - 350 Gravity and a loving wife
Homemade 2X6 Evaporator