Next year, I am considering getting one, but am curious if any of you do a test on a tree. pre season, to see if you will tap that particular tree? also if you would suggest a unit for me that is simple to use and dependable. I have been checking on sugarbush in Mi. and roth and it seems I can get one around the $100 mark also an additional question, does the sugar content stay the same throughout the season? Thanks and hope you all had a good year