the lizards on callisto seem to concur with the 19/22(occasionally labeled 19/38...go figure...)size....
the usage of that size is great tasting and less filling....
not as much waste and distillation column "holdup"....
but as has been mentioned not "everything" is available in 19/22.....
but then not "everything" is available in 24/40 either...
or 14/20 for that matter...
in 19/22 sets....
max size normally is 500ml flask without adapter...
swim found a 1l flask in "clearseal joints"....
swim has seen 5l 24/40 reaction flasks attached to an otherwise 19/22 sized "set" in dreamscapes that for all intents and purposes were fine in a dream within a dream....
just light on a beam.....
"remember little ones, love is real,not fade away, so pass some on today......"