The rotational weight stabalizes the top, given it hasnt had too much multi directional force applied to it and it can try to right itself rotating around its original center. Same with a disc. Its stability is largely related to the mass rotating on the perimeter. Different rpm creates different wing and nose angle which create more pressure on the top of the disc, reduces lift, and increases the rate that it will fall/fade.
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Have: 3rd run esp comets, FD Jackals, Forces, Preds, D1's
Lookin for: Escape, cryztal flx zones, LW 400G D3, grey D2, C PD, P2sget at me