WoW, I really wasn't expect much of a difference but you've discovered a real hidden gem here..
A lot more clarity, with more vibrant heights-
F45 has my vote...
BimmerCode - the gift that keeps on giving
However, keep in mind guys, the F45 HK hardware and F22/87 are engineered differently (See below).
It sounds
subjectively better with the F45 coding because the it seems to have turned up the heights, in the front and rear speakers, a setting that's beneficial to a station wagon layout, like the F45 but I'm not sure it's properly optimized for the F22/87 chassis.. It need more seat time..
Hmm.. Decisions, decisions..
F45 vs F22/87