BTW, the best way to get a tire to set up with a conventional pump is to put a tube in first, inflate the tire well beyond the minimal pressure, and let it settle in overnight. This allows the tire to seat, and as an added bonus, presses down on the tubeless tape (important if newly installed). Then after everything is settled in, break the seal on one side only (preferably the easier to mount side), pull the tube out, put the tubeless valve in, and pump away. It should just snap into position, or at least require very little further gymnastics.