Rules Analysis
When the disc must be carried to the pivot location after the pull or after a turnover, until a pivot point is established;
If the thrower accidentally drops a live disc or a disc in play without defensive interference and it contacts the ground before the thrower regains possession, it is considered a turnover. If the thrower regains possession of an accidentally dropped disc before it contacts the ground without another player touching the disc, that possession is considered continuous.
An accidentally dropped (falling, non-spinning) disc is not considered in flight. An accidentally released, spinning flying disc is a throw, not a dropped disc, and results in a turnover if the thrower regains possession of the disc without another player touching the disc. And the stall count continues uninterrupted.