There are a number of things that can affect your slider's reaction.

• Incorrect air gap
• too heavy an Oil
• incorrect basket endplay
• too large of an RPM gap between the 2-step box and the actual stall speed of the clutch
• condition of the outer basket
  • If it has been a few seasons since you've had your outer basket serviced then it might be time to have it rebuilt
  • A basket with weakened springs can cause an erratic operation of the clutch as well