Other possibilities to consider: slop in the suspension such as worn bushes in the linkage or swingarm pivot... or a knackered shock, or the cush drive or a dying wheel /cush bearing.
Skipping?Is your pre-load wound up too hard? The bike needs to be able to squat a little under acceleration to allow the tyre to work.Bw
FrontRearOn it's way, but not enough to skip, at least not if adjusted correctly