I work in the red 1080p 25 preset with fulldebayer but scale to fit. This works good with the 4k files. But once I import slowmo shot at 48fps in 3k in (still 25fps timebase) premiere starts to stutter on playback. If I go down to 1/2 debayer it playsback fine but looks nasty of course on the ref monitor.
It is easier to play back 25fps 3k than 4k, why does not premiere get this?? I looked and premiere does think the 3k should play back at 25fps so far so good.