By the way, I feel the air flow through the Piano 36 is very good. Very little resistance and the melodica is loud. No problems with note response; it is near instantaneous over 95 percent of the range. The very lowest notes respond a bit slower as they do on any melodica, but not to the extent they influence my playing.
The Piano 32s and Piano 26 are harder to blow and quieter, but they have a smoother sound which I like for slow quiet blues.