DonO. wrote: ↑Sat Aug 12, 2023 6:57 am
Not quite like a “Piggy”, bell a bit taller. Would it be more accurate to call this an “Arion” variant?
As the St. Pete bore size is tremendous (vs. the Arion bore, which is under .800" - specifically: 20mm) I would say "no".
(St. Pete bore is more piggy-like - ie. 21.1mm - kaiser bore, yet compact 4/4 body...like piggy tubas)
Also, the Arion bell throat is much smaller than a Cerveny piggy or St. Pete bell throat.
Arion is basically a 7/8 size body/bell with a "regular - albeit 'darn' - large" bore.
Also, the older St. Pete bell diameter was smaller - more piggy-like.
Newer ones (as with quite a few other models) have suffered from bell diameter inflation.
I'm holding out that (certainly) the older smaller-bell-flare St. Pete's are (basically) B-flat piggy tubas...and their sound is also piggy-like...gruff, if you will.