Re: Clutch Question ?
The type of problem you describe is not the type of problem associated with moly in the oil. You describe a case where the clutch is not fully disengaging (you say surge) and it is dragging while the lever is pulled in. The problems with moly based oil are slippage under load and not dragging. I would guess that your cable may have stretched or is kinked or is not moving freely inside the sheath. As mentioned, I would try adjusting it at the cover. If this doesn't work, you may have a distorted or worn plate(s) or weak springs (already mentioned).
One thing to keep in mind: When servicing a clutch, you need to replace all components as a unit. If you just replace the steel plates or just the springs, you will quickly wear out these new components from the other older pieces you didn't replace. Replace all plates, both steel and friction and replace the springs as well.