Bruce, I stayed with drums as my body is a CMC and there is a lot of work entailed to get the clearance I need to stay with my tire choice. I looked into narrowing the trailing arms and shorter axles but decided at this time the fronts would get the result I needed. A few years back I had brake fade in the mountains on the Dragon and upgraded the front rotors to drilled rotors and this solved the problem. With the new calipers I can now feel the point of lockup on the fronts.
Al, I'm using Dot 4 silicone and I usually flush before Hooning in the fall.