Eddie, I beg to differ with you. I make 20X24.s on the base board of my Saunders/LPL 4550 XLG routinely and I use a Saunders 4 blade adjustable easel to do them. And it fits on the base board. A bit tight, but it fits. Don
Don- The OP mentioned a 4550, not a 4550XLG. The XLG has the longer column. I have an XLG, too. No problem with a 20x24 on that one.