I'm doing a hike in June in the Australian outback where there is a 30km stretch with no water, I'll be camping over that 30k stretch so I have to carry alot of water. Also anticipating high temps and little shade, so will be carrying 7L of water: 3L for that day, 1L for my dinner and hydralite, and 3L for my breakfast and the following day's hike. I will have also just collected a 4kg food drop. I know GG says it can carry up to 13.6–15.8 kg (30-35lbs), but I'll be pushing that, however it's only for a short duration - I'll be dropping 3kg throughout the day as I drink water. Will the pack be able to handle it? Will it be significantly uncomfortable?