ok, I just ran some numbers. going from .022" to .033" increased the area 225%, that's a lot. so going from .066" to .069" is about 9.5%. so maybe a 9.5% correction isn't bad at the IAB. i'd still look at stuff like leaky power valve (fluttering), float level/fuel pressure vs small needle and seats. i'm done; good luck!

ok, I thought I was done. the 225% is high (I think). the .022" jet is 44% of the .033" jet, so maybe about 150% change. still a lot and further than I have gone.