I am finding that the curved neck on my Pan Am might not be the best angle for me. I do have some neck and shoulder pain issues, but so far it is just a bit uncomfortable, but not impossible. I have read here and elsewhere that this is one of the reasons that the straight neck w/tuner is more popular. My question is in reguards to the Conn Alto sax w/tuner neck(or without). I do realize that the neck it's self is responsible for alot of a saxes sound. I guess I am just curious about the dementional differences between the alt neck and the C Mel neck. I believe the tenon is similar, but I am not even positive that would be a direct swap. Any info would be greatly appreciated.