Here is a trick for using C-41 reloads. It solves the following problem: some commercial developing outfits won't process home-loaded C-41. The solution is to obtain some once-shot ordinary C-41 commercial film cassettes... Kodak, Fuji, or whatever. In a dark room you tape the film from your exposed reload to the stub of film on the commercial cassette. You then wind your film into the commercial cassette. You should first cut the leader on your reload square before you try taping it to the film stub of the other cassette. Alternatively, you could pull the film out of the reloaded cassette (in the dark of course) and then tape the end opposite to the leader. With this scheme the company does not know they are processing reloads. Of course, the other way to do it is to not use reloadable cassettes to begin with. Just do the reload by taping to the stub of once-shot commercial C-41 cassettes.