I'm building an inner cover with the intent of feeding from above with mason jars. I was planning to put about 4 holes evenly spaced to accommodate 4 jars or 1 gallon of syrup at a time if necessary. I have a lot of medium equipment and virtually no extra deep boxes. So, a quart mason jar looks like it will fit in a med box if I drill the holes so the mason jars will drop into the cover(2 7/8" hole saw bit it appears). Is this how most are feeding with mason jars or do they simply straddle a smaller hole in the cover inside a deep box?