The hybrid setup is interesting.. I read about it and would make me feel safer than adjusting the wastegate, although the ebc is still in control.
Mbc alone is what I had before, but realized as the New England climate changes, I'd really need to keep an eye on boost since there's zero safety ceiling for over boosting.
Since the weather's gotten warmer recently, the sputtering seems to have gone away somewhat. I'll have to do a few more checks, and see what my tuner thinks. I'll post if I have anything to report.