A friend of me recieved a mail from Bluefin last Thursday;
"First of all I must apologise for the delay in my response. We have been working on this problem and with the last remap we provided you, have almost completely eliminated the reported problem with driveability on our development cars here, so I am surprised to learn you are still experiencing problems. However, we have also made some new developments with another of the EcoBoost engines, the Focus ST, and are getting a Fiesta ST back in again on the back of that. If you still have Bluefin and are prepared to wait another week or two we should have something for you very soon to try, if that’s still not satisfactory you would be free to return the unit for refund."