I don't see how a few extra frames could fix the halting. I think he's referring to the slightly faster frames(the gif with the white background). Just using the "original image" really doesn't exclude it from looking jerky. It could look like that based on the fact that the original artist had to work with the system constraints at the time. Anyways.. I could only see Arcaith's input as being true if you were to cycle the frames as fast as the white-background gif. The pink-background gif seems perfectly fine. I think also Link's overall posture gives him a stiff-esque look, which may also be why Arcaith thinks the animation loop is "jerky". There are frames showing an entire footstep on both legs, how many more frames could you possibly add to that anyways? I think jerkyness would be encouraged by adding extra frames just because there's less frames to interpolate at the speed TFS has the pink one going. And if you add more to the white-background gif, slowing Link down would look funky. I could be wrong, but based on how I visualized this in my head, you are fine as you are TFS. Until I'm proven wrong, at least. ;p