I'm with Ridge on that for a winter day walk I'd swap the stove for a flask
I'd definitely have some sort of emergency shelter though- 2 person bothy bag sounds good, but an orange plastic "body" bag would do, although they're probably not much lighter!It's not a question of if it gets nasty I'm getting out of here. the key word here is
emergency. Like when you trip up and injure a lower limb.
Spare base layer etc- leave it in the vehicle, tent, accommodation or whatever, but it's worth having stuff to change into as soon as you finish the route.
Otherwise, if you are prepared to carry it and want it, take it. I met a guy on top of Stob Coire nan Lochan the other day in some sunny, but very icy and treacherous conditions. He had a full weight photographic tripod and a
load of camera gear. I bet he got better pics than me though
Oh and later on we came across a guy who had slipped and broken his ankle. It was about 3.30pm and already well below freezing. when we got back to the road at around five the MRT were just getting together so it could have a number of hours before they got to him. Good job he had an emergency shelter (bivi bag) as I dread to think what the temperature would have been by then, sat on the snow at 800 metres and not moving.
Ian
www.mountainfreedom.co.uk