I tapped some 2 dozen + trees 2 weeks ago Scott, they should be running 'till the bitter end, whenever that is. This is my worst march ever, so glad I jumped the gun in January. I took the chains off the tractor 3 weeks ago, I had to plow today with the payloader. There is some s***load of snow out here, kind of glad I took those other 100+ pails down, gonna be bad enough getting to whats left when it starts running again. Prolonged cold like this, i'll bet the syrup goes back to a lighter stage.