Pogden, I had started this reply saying only the 23's have this "cap". I just noticed that you have a master angler.
Looks like it has a cap too. Best to ask a master angler owner, or someone who has looked one over. I think you should ask yourself, is it easier to cut the rear section of the cap off, or remove the whole thing. Do you have wood core that needs to be replaced in parts of the cap?
Is this what your transom looks like?
"and then some" has a differnt type of hull. Standard 20ft which is a 2 piece boat, no cap.
hope this helps.