FFM mouth breathing tip?

yeah frap
i was actually fitted in the office with that stupid medium, but the RT told me that it only came in med. or large, so i thought i'd give it a try...it's never the same at the office as at home anyway...but of course, as i said earlier, the moron was bare faced lying to me and just didn't want to have to order my size in; i have so little confidence in their abilitiy to fit anyone properly anyway, i'd rather just bring it home and try it under ideal circumstances...if being on cpap can be considered ideal, LOL

i've already checked with customer "service" and she tells me she has all sizes of the 431 in stock, so i'll get to try them out there

thanks
sharon
p.s. in answer to your question, at my last study they had me at 10, but sleep doc says to try 9.5 for a while