I finally got out of my sick bed (yuck) and took the family up to Flagstaff to play and see how things were at 7K (temps at 75F).
I rode with the MJet at 172 with the PJet at 42. Airscrew didn't seem to make much difference.
The off-idle to mid-revs were very nice (I might be able to go one leaner on the pilot).
But just when the Gasser was about to come up on the pipe, the gain in revs abruptly ended and it started to blubber. Not as bad as my ride a few weeks ago at 7K, but I was short-shifting the entire day.
At first I thought it was a float problem (fuel starvation), but when I got it back down to Phoenix (1,200' and 102F), It ran like a raped ape.
Looks like I need to buy a 168, eh?