Unfortnately the 2011 boot is for a console and too short. The stock boot works but is just about stretched to it's limit. After my next run I'll probably build some sort of console to use 2011 boot.
The G56 shift knob is a weird one. To get it off you pop out the indicator tab, and unbolt a 15mm bolt. Then you still have to unscrew it from the shaft. So don't go trying to just twist one of these off like the old ones!