Please keep any helmet 'debates' to the thread set up especially. I do genuinely need one as it's a requirement for participation in the Bealach Mor.
I've got a Spiuk at the mo, but just occasionally find that the fore to aft fit is a little tight (side to side is fine). Had a brief look at Lazer helmets at the Haughcross and they had a neat retention system that seemed more 'all round' the head, so didn't create pressure points. Bearing in mind I'm going to be wearing this for 6+ hours I'm after a combination of lightness and airiness with comfort. And sub c.£75.
Bear in mind I WILL seek out to try on any helmet first in the nearest convenient stockist, so not buying blind, but some indicators could come in handy (that's an indication of a good helmet, not flashing orange things on either side of the helmet).