Im running a 5D mk iv, and was recording to my Ninja Assassin to 60p @ 1080. I brought my footage into Premier Pro CC and dropped it into my regular sequence preset for editing. (DSLR preset,@ 23.97 but at 816 rather than 1080). My assassin is set to record to prores, and i haven't tried slowing it down before, now im trying to slow down my 60p footage by 40% and my footage is really choppy, looking like if i slowed a 23.97 file in a 23.97 sequence. I have recorded 1080 at 60p right onto my 5D and used this method and its worked fine in the past, is there anything that would be different with Prores?