Tuning pass but EQ bead CV high?
I recently experienced my first "failure" for EQ beads - the CV should be <12%, and I normally see ~8%.
On this occassion, tuning passed and there was nothing unusual about it, but the bead CV was 17%!
Strangely, running it for a third time finally produced a "pass" of ~10%.
What could cause this without showing anything in the tuning results? I'm guessing cones? (The cone current was fairly low - certainly where it normally is).
Many thanks!
(If it matters, I'm using a Helios with WB injector).