Just as I posted in Basar's thread:
"Couldn't agree more! We have hit the same issues as HPF, car starts, idles, drives great with minimal load on the car and slight throttle inputs. More than that, it's a big no go. We have found, at least the start of, a few of the issues and how to remedy them doing some tuning to the stock DME. I'm not sure how far it will need to go but we are on this path, and hopefully a path to getting the ProEFI Z4M's to see some boost. We haven't given up, or made excuses, there are definite issues with tuneability and we are combining some of the best brains in the business to try to remedy the issue. No updates from us is a good update honestly, that means we haven't been stumped. I can't say when but I am 100% confident that our Z4M with a properly tuned stock DME and properly tuned ProEFI can produce some great results! "