Thanks for the help.
I just tweaked the cable length by about + 1/2". All seems to be fine. The fork is about 1/4" from the forward casing & the pedal kicks in at about 2" or less. There's no clutch slip under load.
Does this make sense?:
Cable too loose - late clutch disengagement or pedal to the floor
Cable too tight - early clutch disengagement &/or slippage under load
Cheers.
"If the clutch disengages too early then it is too tight, too late then it is too loose."
Captain Obvious here.