As a fellrunner can you take enough kit to keep warm if you injure yourself, the more you carry the less you are able to run.
Last night I had too much gear in my sack (I don't even wear a sack normally for short, less than 6 hour, runs) Three pairs of gloves/mitts, marmot driclimb jacket/trousers, event jacket and triplepoint trousers, balaclava and hat while wearing the lightest weight powerstretch tights/top under a pertex jacket.
I would not have liked to stop and wait for someone to rescue me (stopped on top of Pillar for 6mins well 6:20 to have a good drink and something to eat and my hands did not get warm again till the top of Scoat fell)
going by the size of bum bags/sacks of other runners I've been with they carry a lot less than that.
Bill
If the MRT think you lot are bonkers I wonder what they make of the bats and owls