I've been told by some racers that revved the heck(9000+ RPM) out of there motors that have a lot of spring pressure(above 900+ Lbs. over the nose) to use .050 with checking springs for coil bind confused
I use .060 to .080 for coil bind with checking springs and have for years on any of my motors that will be revved above 5000 RPM street or race only up twocents

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)