[ERA Chas]

Chuck, Don, Bob et al,
Tested extensively today on dry, hot asphalt. Twelve stops from between 40-60MPH shifting to neutral and flat nailed them. No threshold braking, no flywheel helping. All stops about thirty secs. apart.
Locked the rears on the last seven stops. Have to be ready to catch it.
Felt like arresting hook. Bit harder the hotter they got.
No noise whatsoever.
If it helps, I used Permatex "Disc brake lube" [it's dark green in silver plastic bottle] on piston to shim contact surface.
Only testing left is 100-0 a few times but I'll need better "test area".
Definitely cured my problem, 'cause I was getting noise during stop/go driving or after two or three 50-0's previously.
Thanks too to Rob who suggested the silicone. Everyone's set-up is slightly different and this just happened to work [SO FAR] for me.
Hope this helps and please share your experiences.