Jared91,
I believe they are recommending moving the open block up one space closer to the pan. You might get better draft. Then again your mileage may vary! Rule 1 of suryp making. If you have fire under the pan have liquid in the pan! After that its all fancy stuff to get more liquid boiled faster!
Your doing good! Welcome to our world! have fun making syrup!
My guess is the 91 in your handle is your age? I have a grandson that is a 91 model too!
Regards,
Chris.