Marshall wrote:What was your "choking issue"? I know that early adopters had some problems with the initial design, such as static cling on coarse grinds. But those were corrected. I don't believe I have heard anyone else complain about "choking."
The exit chute got blocked and the grinder stopped turning. I had the same issue with Mini-E, if I accidentally ground too fine (Turkish). With Mini-E, cleaning it out was a bit of a pain, but doable. And when you learned to dial in your grinder properly, the problem never returned.
With ProM, it happened even when you kept to espresso settings. And fixing the issue was really difficult, because you could not disassemble it. At worst it required close to an hour of hoovering and poking the exit chute with toothpicks, your finger etc. The last time it happened, one of the rubber flaps came out with the remaining grounds and the grinder became practically unusable.
Of the three ProM grinders (early models) I know in Finland, all had the same issue and at least two were returned to the seller, including mine. I have not heard what happened to the third one.