Thanks for the tips guys! I will not flood the pans anymore. May be a bit before I boil again but I will keep you posted.
Finished tapping yesterday in the cold wind and bright sun. South side taps were dripping a bit, but lines stayed frozen. Looks like the total tap count will be 750 this year, which I am happy with. Still have another 65-70 on our property to grab but will wait until next season. Was thinking 3/16 on those but not sure there is enough slope. Now I am thinking putting them on vac. with a small electric releaser to pump up to the sugarhouse. I have enough pipe to run a vac. line down there, and a pump line back up.