X2
I’ve seen +/- 15-20 just from the wind changing direction, lol.
And 23psi on a K03…? Man, that thing is probably screaming for mercy. Not only that, but your power band is probably done by like 3200 RPM.
There is more to it than just the psi pressure. There is volume, also, and the little fan in the hair dryer of a K03 can’t push enough volume at that pressure to be effective for very long.