Is staying with the same rim essential? Currently, the best results that I get for lead work is on a JetTone Vintage Bill Chase model. In contrast, the best results that I have for legit/all-around playing is a Monette C1-5M. Should I just try not to worry so much about switching rims? Or, should I be pursuing two mouthpieces with the same rim, like: Warburton 4M/4MD (.660) Monette C4/B4/B4L (.660) Curry 3ZM/3BC (.665) Monette C1-5M/B1-5L (.670) ??