Mess around with flakes long enough and I suspect you will eventually notice that the least miscalculation in over-packing even a Billiard (let alone a stack) will be magnified by the length. A squatter bowl, on the other hand (Bent Bulldog, Prince, Apple), with less depth for moisture to accumulate and multiply the effect of, will tend to dry itself as the bottom is reached.
(So long as the tobacco plug is not touching the bottom of the bowl itself. It wants to be suspended a bit above it by side-pressure. Otherwise, the tobacco at the bottom wicks up the moisture accumulating there).
FWIW
YMMV
Void where prohibited by law or taxed.
:face: