WARNING: This mod involves grinding and cannot be reversed.

Parts:
2 Yomega/Bandai Hyperwarp Spacers
1 TL(already there) or Yomega Bearing

Supplies:
"Nick Sander" or anything else to sand down the Starbursts
Something to widen the spacer hole, I used pliers

Steps:
Step 1: Take the yo apart removing spacers, bearing, and axle.
Step 2: Proceed to sand down the starbursts until they are pretty flat and even with the inside of the half.
Step 3: Remove O-rings if you haven't already. Step 4: Take your tool to widen the spacer hole and grind a bigger hole to fit the Hyperwarp spacers. (The spacer will jut out a little into the gap and will make the gap ridiculously big, but it still works fine for me.)
Step 5: Put the yo back together and be careful not to screw together too tightly.
Step 6: Enjoy! For string tricks, It ranks up there with my SF and 'Gade. For looping...ummm forget it...

Thanks to Fiend X for this mod!