Re: Jody jazz Dv Problem!
Jody Jazz mouthpieces are extremely well made. I would be very surprised if it were an equipment issue unless the mouthpiece has been dropped or damaged in the past. Did you buy it new or used? If you bought it used (especially off of eBay) it could be that the past owner damaged it and was dumping it in a less than ethical fashion. If you have anyone near you who is able to assess mouthpieces I would definitely have it looked over. Otherwise, there are any number of great mouthpiece refacers out there you can send it to and have it looked over.
Assuming that its not a mouthpiece issue. Then you need to look more closely at your embrasure. Metal mouthpieces on alto can take some getting used to. I would also try to take a lesson with a local professional who is know as being good at diagnosing problems. Best of Luck!!!