I will make the first non-Rovner ligature post. I play on FL ligs and want to know which size I need to get for an RPC 110B bari mouthpiece. The mouthpiece is waiting for me in the US so I will have it in a week and a half when I get back from China (finally!). I am hoping I can learn which size I need ahead of time so I don't have to go the trial and error route when I actually have mouthpiece in hand. I am posting this on SOTW as well. I'm hoping between the two I can get some info. Thanks!