This paper investigates verb stranding ellipsis patterns in Uyghur, focusing on the identity conditions imposed on stranded elements. In Uyghur verb-stranding ellipsis environments where just the main V is stranded, the stranded V can be lexically distinct from the V in the antecedent clause. But in V+Aux-stranding ellipsis contexts, the V must be lexically identical to the antecedent V. This difference in identity conditions on V is shown to be the result of a difference in the type of head-movement V undergoes in these contexts, syntactic and PF head-movement, respectively. More generally, it is argued that the type of head-movement V undergoes is determined by the type of head that V movement targets. In light of this difference, implications for the conditions on when either type of head-movement, i.e., syntactic or PF, may occur are discussed.