The way I see of improving your 'modified' 34 brakes is you could replace the original Ford wedge setup with Teds floater kit to the bottom,; this would allow the shoes to 'float', and you'd need to somehow make a fixed anchor above the wheel cylinder to prevent the trailing shoe from moving. Make sense? Alternative to using Teds floater kit, would be to drill out the rivets holding the adjuster mechanism, slot the backing plate holes, and reassemble with bolts and locknuts, to allow the mechanism to float. Teds kit would be preferable.