Close study of NOTAMs certainly happens at a certain Police/AA unit somewhere between Lyneham and Salisbury Plain. That unit also possesses mapping showing standard military routes/corridors. I suspect that if I was behind a lights-out a/c on my occasional shifts there, then:
a. I probably wouldn't have much, if any, overtake speed on most military helis.
b. I would probably be at least 300 feet higher than that heli, and
c. The light from my anti-colls (I'd even consider white strobes if near a NOTAM'd route, task permitting) would still be evident to him/her even though I'm in his/her high 6.
All of which makes it an acceptable risk to my crew and me in our public service aircraft, so I'm happy to continue to share the same airspace. Thanks for your concern.