I've made a terrible mistake, I engaged on APC forums.
The only advice i'm spreading is to always screenshot your HI3 & HI6 immediately after block in if you don't want more flying. That way there is no question and you hold your own evidence.
Also, I've been pretty up front that this is my interpretation (however clear it may seem to me) and everyone should do their own research and come to their own conclusions if they care.
Maybe I'm right about 15 mins, maybe I'm wrong - to me it is as clear as day in FM1. Either way, if you check and screenshot there is no question. If you don't then you run the risk of dealing with a grievance (whether the company is in the right by doing so or not) where you're arguing which parts of FM1 apply to you instead of just submitting screenshots.
At the end of the day we've now spent more time bantering about silly non-issues on APC than it would take to screenshot for the rest of the year haha.