Brett didn't you post the plan for your metal 7.6 oz fuel tank at one point?
My Stunt Hangar search engine skills are apparently weak because searches like "Brett Buck fuel tank" lead to dozens of FP-20 tank setups, etc. Searching "make metal fuel tank" yields 14 pages of results that are tantalizingly close but not quite.
I don't think the Brodak 8 oz 75 tank works as well as my Kenny Stevens 65 tank, for subtle reasons I don't entirely understand. Thus it's probably time for me to learn how to make my own tanks...
The 75 run is good but not Nats good yet.