sean i get no fluctuation at all during idle its rock steady..... Tq is very good on my 500 kit which is admittedly making way more boost than it should.... keep an eye on the clips... boost leaks are so obvious on this kit as performance drops like a stone!!
heres an idle clip....
from 1.50 onwards.... note it doesn't move an inch!! ignore the rest....
the blower sounds like shit during breakin and some of them continue to make a tin can rattle.... mine got much better after i did the initial 2000 mile oil change, intake noise i dont get the jet sound really.... the exhaust drowns it out, from inside the cabin it sounds like it did before with a muffled Blow off noise....
adaption did take ages.... dont be afraid to explore the rev range, it needs to adapt everywhere just be mechanically "respectful"