| Hi Ray, and All!
For clarification purposes, I just wanted to mention that the 4H bell was previously a 24H, and that the 24 model was the predecessor to the 21. When Roy switched over to the Getzen valve sections, he decided to change the model numbers to distinguish between the new and older models. Obviously, the "2" was dropped from the model numbers.
A heavyweight bell will have a larger bell bead, which will make the bell slightly larger than the standard weight bell. Also, with the STS models, since that design option is a bit more "free", in terms of bracing, the heavier bell is a great choice for the more "legit" sound.
The STS option does provide a great alternative to owning several horns. Additionally, the STS "coupling" does provide stability, and does not affect the horn in a negative way. I WAS concerned about this, prior to actually playing one. No more... it's a great option!
Hope this helps!
Best always,
Bruce |