Don’t put 3000 diamond on your Darkside lap, once it’s on their it’s there to stay.
All stones that polish with diamond and there’s heaps of them, will pre polish on a Batt lap with 3000 and produce a brilliant polish on a second Batt lap with 50 or 60k diamond.
Don’t bother with Diastik’s their to slow, use diamond powder and baby oil. On the 3000 lap use 2 drops only of baby oil and rub the powder oil mix around the lap with your finger. Wash your hands thoroughly afterwards. Run the lap at about 300rpm and put a little bit of pressure on the stone.
You don’t want to much speed or baby oil on the lap because you want the oil/diamond mix to stay on the lap.