I bought a new Selmer 10S II B flat clarinet and it seems to be a great horn. Has anyone had any experience with this particular model clarinet? The joints are a little tight though.

i havent had experience with that exact model, but i do have current experience with a selmer cl301. the joints on it were tight when i bought it but thats only because the cork is new and therefore dry. just use some cork grease and rub it in with your fingers every time you play it and they should be looser within a few weeks.