Esshup, I do my best to try and tap only on the south side of the trees...and it does make a difference. The tap in the photo has been in for 8 days now.

I also use a hydrometer to check syrup.....but not sap.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.