Project files here; https://drive.google.com/folderview?id=0B6NOdRrJsHm8ZDIxSGxPVzRYT1E&usp=sharing   Short version, I'm creating my own DD for this track - and while levelling works (to an extent) 100% mastery isn't possible.   It's most obvious on the bass path, the first few purple bars for eg, show zero notes in game at max difficulty. I'm sure this is a result of the way I'm making the DD (copy master track into lower levels and deleting notes I don't want on that level), but advice on