We have some driveway trees, but mostly woods trees, so I am thinking about thinning the woods a bit for next year to increase sun availability. Don't think I'm quite ready for the 1 1/4" mainline that Spud talks about, but like the enthusiasm. Our sugar has been testing 2-3% even at this point in the season, mostly because we have several microclimates in our woods that see very different weather conditions. Still have nearly 2-feet of snow in parts of the sugarbush.

Should I stick to 5/16" tubing if I go to a vacuum system, or should I go down to 3/16" tubing? I'm still new to learning about what size tubing I should be using.

Thanks