Mine is recessed, too!
I have a Legend 37 (1988) an it's recessed, too. But I didn't have a problem when I changed to an SL head a few years ago. When I changed the line, and keep this in mind, the instructions requested braided line, Then it said to strip the core from the first 15' that rolls on to the drum. This was to prevent the line fro bunching up on the drum because it'd too thick, otherwise. Just keep this in ind when you put a new head on and it jams from too thick line.Obviously, if you have the DL, then I never had to deal with that. But, I think, that line will need to be spliced.P.S. I changed from the DL to the SL because of slippage on the DL.