The only point I was trying to make is that if weight is a concern there are things that can be done to reduce the SIZE and WEIGHT of your pack/kit. Does it compromise the quality and endurance of the gear? you are right Absolutely! Thus one has to rely more on his skill/abilities vs. gear. IE. I know myself and know if I was in a bad spot with cold fingers I would end up tearing foil while trying to purify water over a fire. Therefore I carry the ti cup.