It makes sense to me to lower/raise boost based on the engine dynamics going on across the rev range to make a smooth power delivery (but it's way over my head).
I'd like more info on where the boost choppiness comes from. Is it the tune? Free flowing mods (DCI, DPs, etc.). Is it normal to see this?
"I'm not sure what the price difference is, but the BMW feels $15,000 better." -Edmunds, 2007