Nope, I boost just after 1st mag as well (not in TT though, hint-hint) but I'm not convinced it's the fastest way...
The 7BRs I would use in my ideal lap so far would be: 2 At the start (you have to kinda land on the left-hand lip for the 2nd), one with boostshortcutthingy, 4 going around the long right-hander. I can't do one after the hairpin but maybe someone else can?
Thusfas I've only managed 4 in one lap but I can do all 7 separately...not that it's of much help
