I think I finally figured out this Megs #105 stuff
I admit, I've struggled with it over the past year. At first, I had the flashing problems (like most everyone else), that I mitigated somewhat by spritzing the paint surface with detailing spray. Then I got into the pad priming routine as per KB, but still suffered with occasional flashing, and it still wasn't producing the results others were getting. Almost got to the point of giving up.
But, I recently purchased a Griot's Garage 6" DA buffer and the added power really helped get the swirls out. In addition, I sprayed an orange CCS pad first with Megs #34 detailer and folded it in, then primed with #105 and folded that in, too. Then added a few dots of #105 and went at it with speed 5 or 6. Now the stuff doesn't flash and I can work it almost forever with no further pad wetting or paint wetting. Occasionally, I'll blot the pad on a microfiber to soak up excess product.
Still dusts like a bitch, but I'm much happier now.
Jim