and on the 90 gallons part, i saw one of the prototypes for the grande this summer and it looked about the same size as a large burn. i dont see any way that the standard jefe is just 4 gallons smaller than a large burn. It felt considerably smaller. So I would take those gallons as a reference and go from there.
"Yesterday I was clever and tried to change the world. Today I am wise and try to change myself." -Rumi