From time to time new innovations crop up which, according to their inventers/designers, will revolutionize all trumpet playing. In a few cases, we are benefited by these improvements but in most cases the new ideas fall way short from their advertised benefits. Case in point is the continuing push for plastic trumpets. I have been performing on one such innovation for several years. When the PBone first came out, my wife surprised me with one for Christmas. After many Dixieland jobs and constant work to improve the less than adequate slide, I finally became satisfied with the “pretend plastic trombone”.…