I know when i ran Bluefin on my normally aspirated Focus once it was loaded it took around 50 miles to really feel the difference, i installed it, drove out to the motorway, sat on the motorway for about 20mins then really felt a difference once i came off!
I haven't read all the above posts but as i remember Bluefin is a 'learning' program and does need to 'see' all the load sites in the map before it alters things...
Give it a chance and see how it runs...