I don’t know if WILD is my thing, but is this progress? Last night I tried WILD which I haven’t done in a while. I never succeeded, but 3 times I felt both my entire legs spasm or something. They kicked, but I didn’t make them. The problem is at this point I had mostly lost awareness, and I only regained awareness because the kick startled me awake. Another thing, I’m not sure if I really kicked my legs or if that was HH.
if anything noticeable is happening to you, then
yeah it’s progress. and it could have been HH
or it could have been you muscles spasming.
I’d bet on HH
It could also be, a hypnagogic jerk. If this was the case you would probably have felt as though you were falling slightly, as if you had stepped down a hole unexpectedly. This would be a sign that you were relaxed and headed in the right direction. 
Yay? In my case, I have had muscle twitches many times, with no actual change in position. So this means I’m close to HH too? 
Then why can’t I get farther?
Before the leg spasms, I had many twitches. My ankles, fingers, and toes mostly. I just mentioned the leg spasms because they were more significant. Enough so to startle me.
I did feel that, but only the instant after the spasm and only slightly. It was very subtle but I noticed it.