Busted this out in one day. Was just going to leave it at 4 frames but went overboard as usual.
Set at 25 fps, 15 frames total, each frame held for one (so each frame doubled) except frame 13 and 14, held for 2, and the last frame held for 6 so it doesn’t loop too fast.
Still need to add an extra frame between the second to last and last frame.
Time taken so far: 5h 48m