How much weight should I carry?

Hi y'all. Had a conversation with someone today that prompted this post. Wanted to hear people's thoughts. 

If there is a considerable weight difference (forty to sixty pounds) within a team of climbers for let's say, an alpine mission, or a long-ass approach for a mountain big-wall, should people carry weight that is a percent of their body weight, or should each member of the team carry the same amount of weight?

Please weigh in. 

Percentage. It's obviously going to be much more of a burden for the lighter person to carry the same raw weight as a heavier person (fitness levels being equal). If this is one team, everyone should be invested in the success of the team, and I can't imagine having one person way more tired than everyone else would help contribute to success.

it usually shakes out to, everyone carries their personal gear, then evenly split the team gear. if someone's moving way slower, then take some of their weight.

two people weighing 150 lb might have dramatic differences in hiking/running speed, so pack/body weight ratio isn't everything.

Greg Kosinski wrote:

(fitness levels being equal).

Yeah - except they’re rarely equal.  If you know you’re the strongest, fastest hiker and someone else is much slower - you take a chunk of their weight - simple as that.  The goal is for everyone to be moving well together without stopping to wait for anyone.  For a bigger trip with a lot of weight, I do generally try to weigh everything and everyone’s packs - just so we know - and can shift gear around later if need be.

My longtime climbing partner, my mentor, would sometimes switch packs or haulbags with me just to make sure I hadn't packed my bag lighter than his.  He was 190, and I was 145.  He was also a former 11C 3/75, and built like an action figure.

I remember carrying ~90lb bags up to the Diamond once, and passing out / napping on a rock just short of treeline.  Some kid, maybe 10 years old, started poking at me to see if I was still alive.  Understandable, because I was still in the pack straps and had my head inches from a puddle of my own vomit.  My partner was, likewise, taking a mid-approach siesta in a puddle of his own self pity at the other end of the boulder.

I kind of miss those days.  Not because they were entirely fun, or this type of thing made sense, but because I was strong enough to do that.

These days, I have, at times, pawned off some extra pack weight to younger partners with the stated bargain that it will help us get to the climb faster, and get to the summit before sunset, or such.  I can lead the harder pitches, but being smaller, this 50/50 thing has since caught up with me on approaches, or I've just slid past what margin I once had.  'Just stop being weak' is, however, another solution.

How much weight do you want to carry?