I have two titanium cups in my bag. Super light, one for boiling water and one for eating and/or drinking out of. My stove fits right inside and protects it, plus it's fuel. Kind of sill for me not to have a titanium cup that fits so perfectly and adds so little weight
I`m not to concerned about BOB weight as mine is almost all modular, so I can remove packs and pass on to a friend or leave one at camp, etc. I`ve also hiked with mine, not to bad, it's <30lbs too.