i've been discussing this with a CAB50 owner. i have a PS50. so high medium low setting stoves. i've read running on high for long periods is not recommended. why? for me, with the feed gate all the way closed and burning the mwp blend, it's either run on high when it gets down in the minus teens temp range. or open the gate some to run on medium. looking for more info on why running on high (as long as the pot is not getting overfilled) is not recommended.