I have two 1956's and am very happy with them...i also have the Orvis Mid Arbor and i do interchange the spools as well. It has been mentioned already that because Pflueger considers a spool a "part" you can buy direct from them...$25 Now, oddly enough you can also buy the housing because it to is considered a "part"...$27, How many parts does a reel have? do the math...