I'm on my 2nd revision from Eric....
I had some minor knock, and I wasn't hitting target boost, so Eric revised the tune and dialed in the wastegate and I was hitting 20psi every time, but still a tiny bit of knock. (No virtual dyno to show for it)
2nd revision, no LFKC, only a little bit of FBKC, boost is back down to 18.43 psi, (and I have no idea why...) but it's still insanely fast. I think my studded snows are almost breaking loose in 3rd!
Here's a comparison of the stock tune, stage III & Rev 2, quite a bit more area under the curve in the revision 2 (hills MUST have played into that...), with smoother boost (I also corrected for temp & turned the smoothing up to 6):