I have burned myself with a Sterno. Stove. So I would rather keep the msr. Stove. Apparently I don't see the flame easily and that was years before any eye problems.
I think I can get it down to 30 pounds total including food and water. I'll get something of a more exact weight to test the person scale accuracy. I just don't see how there could be a 12 pound difference. I expected a 3 pound difference at the most.
Too bad I or others don't live closer, we'd assist in getting your pack weight to a manageable level.