Of course. I assumed that "15-23" would mean "average", so since the average band size is around a 36, that would probably mean "32D-40D" or something of the sort for "15-23".
Either way, the numbers seem absurd.
Either way, the numbers seem absurd.
Plugging in r1 of 3 and r2 of 2.5, and h1 of 36 and h2 of 34. Constants cancel out, that's an increase of 2.38 times in volume.
This is per cone ;)