I only tried from 1 savestate, but could get it somewhat regularly after a short warmup. Needs at least a 2 frame jump from the first to second flying platform. Even got it twice in a row here.

The fact that I can get the jump on 2 different frames makes me care about subpixels less.

Edit: it's faster. It has a nice setup. I'll go for it in runs, eventually. ^_^