Supposed "poselet" here, wanna update my findings.
1)Mcfartanon is correct about there being more than 3 detents, It's just that they are still large and tight so that you only get to use one forwards or backwards before it crashes into the sculpt of the shin and can't move anymore. I guess figures with no boot-cuffs or shin-pads will have less problems with that.
2) I decided to copy this weird squatting pose
>>9015617 and as I expected, it does look pretty silly without the big-gun in the way to hide the view of the figure's hips and thighs. I also tried it out with two Hasbro Figures and it was much, MUCH less fiddly to balance them thanks to proper thigh/boot swivels(also Red Hood's feet are not very flat). Obviously Snake-Eyes range BTFOs the Mcfartlane completely.
3) The ankles are still a pain in the ass compared to alot of figure-lines out there right now. Jazzwares has made the same style of ball-hinges but without ratchets and they work alot better. The Ratchets really add nothing positive to the mix.
Be mad at this post if you want, I don't really care.