In reply to mmmhumous:
It's a learning process really, takes a good number of times to get your 'system' right, I'm still making adjustments, leaving stuff behind, trying new things on the hill etc.
A good tip is to make maximum use of your rucksack space. I use those wee waterproof pod sac bags thingies that fold over on themselves and clip. You can ram so much in and compress them down to get all the air out then clip em shut. You'll be surprised how much you can fit in them.
Then with your neat little pod sacs you can stuff em in the smallest of spaces between other things in your main pack.
For me, the rope goes in first, then the rack (split with partner) I can get these pretty flat taking up only a small volume.
We split our rack, generally, like this:
Il take 1 1/2 set nuts and full set hexes
My partner will take cams and draws (6 normal, 3 sling draws)
Depending on route we will split pegs/warthogs/Bulldogs/screws etc
We each take our own slings (3x120cm & 1x240cm) screw gates and prussiks etc.
Then, harness goes in along with belay jacket compressed into pod sac (belay mitts in its zipped pockets)
I take another poc sac with my climbing layers: ME eclipse as base layer, thin down jacket as mid, neck buff and 2 pairs of climbing gloves.
Then il stuff 500ml plastic water bottle and 500ml lucozade sport into spaces down the side
After that, my food goes into another pod sac stuffed into my helmet and that sits on top then my hard shell gets stuffed around this.
I generally walk in with a very lightweight base layer, fleece (BD coefficient) and thin gloves and my hat. The base layer gets changed at base of route and left in the bag the rest of the day.
As far as extras go (all go into the top zipped pocket on the lid of my pack):
1 head torch (in dry bag)
Goggles
Guidebook (I like to take it)
Map (in dry bag) & compass
Emergency kit consisting off compeed, 2xhand warmers, paracetamol & ibuprofen, super lightweight emergency bag and whistle
Il also have another poc sac with emergency pair of gloves in - £6 skytec argon mega warm gloves (my phone gets tucked away inside these)
As far as food goes, same days I take to much and don't eat it all (unnecessary weight) but then next day I won't take enough and il be starving! So I usually take plenty. Things like weight gainer bars are good, loads of protein, carbs and calories. Couple energy bars (in jacket pocket) blue cheese (obviously) sweets and chocolate (lidl is amazing) and yeah il prob take a sandwich too or pork pies/pasties etc.
I no longer bother with a flask unless I have a cold in which case a 500ml flask with hot lemsip in
I drink loads of water all the time anyway so I get away with not carting loads of water up with me. Plus il eat a beauty of a breakfast...try this:
Porridge made with whole milk, some peanut butter mixed into with with honey, banana and double cream. Maybe a wee scoop of whey too.
In totally waffling on here and way off topic but I'm sat out in the North Sea right now bored.
All this will fit snug into a 40L sack with only my axes on the outside. No idea how much it weight but it's pretty minimalist and necessary. Besides, I don't really care how much it weights as you only end up carry a small amount after gearing up.
More weight will make u fitter and stronger
I can't wait for summer now...trail shoes and a 10L bag...it's a joy after slogging everything you own up a mountain in waist deep snow for 6 months...