Currently playing an RPC rubber on a Kessler tenor, but I miss the responsiveness of my alto Meyer 6M small-chamber. I'm challenged to supply the air that the RPC tenor seems to want. And, the sound is overly-dark. Does anyone have experience with a Meyer 6M or 7M rubber tenor mouthpiece with small chamber? I'm not a fan of the high baffle (had a Jumbo Java that hurt my ears!), but the small chamber seems to suit me, in alto, at least. I'm hesitant to order the small-chamber Meyer tenor because there's no return on a special order, so I'm hoping for some knowledgeable input and advice. Thanks.