I did not adjust for temperature. I purchased a hydrometer from Roth's. I must have made an error on the last run with my calculations. I just ran the sap that I currently have through the RO and ended up with 8.75 gallons of sap that is reading just above 8%. I'll see what I get out of this batch.
You guys are great for all of the input and I really appreciate it. I'd be lost without this forum.