Folks, I talked to Michael today. He is doing well and backlog to clear so not taking any more orders. He was very gracious on the phone today and I ended up ordering "VB3000" material and "semi-tubular, copper rivets". You can order this material or more aggressive "2520 Road Racing Compound"
BTW, Michael's priorities for super brakes
1. Use Extreme Pressure grease for internals, rated >500 deg temp
2. Copper Rivets
3. VP 3000 brake material 1/4 so that it will be oversized for "7-inch hub" that is likely not that size so you can turn them down to fit in the drum
4. Proper thermo adhesive
5. Always set up arm to cable angle to an acute angle i.e. <90 degrees
6. Hire someone with a lathe and know what you are doing--this is for me.
7. Enjoy braking with proper stops with no squeaks
Best
Mark
Vincent B '50 in SF