I always have video stuttering when I record at 60fps. I visited my son in California and did some filming out there. Discovered I had somehow put it back to 60fps. I was depressed to think all the video I took that morning at the beach will not play now. I put the chip into my son"s new Mac and they played perfectly! Later when I got home and put the chip into my 5 yr old Mac, same stutter. So the stutter or skipping is not Pilot app or your phone or Tab, it's the system you are playing it back on. BTW, when I put that stuttering video on Youtube, it played perfectly.