I recently purchased the M/O ligature (model LC59AP) for bari sax. I used Java red reeds. I tried it on a selmer C* mouthpiece and a Yanagisawa mouthpiece and both times, the ligature is too large for the mouthpiece and I can only get it to tighten sufficiently if I move the ligature to the very bottom (or slightly past the bottom) of the reed. I believe i purchased the correct one because the other baritone option says it is for there V16. Any idea why this is happening?
https://vandoren.fr/en/saxophone-ligatures/
https://vandoren.fr/en/saxophone-ligatures/