1chris5, here are my responses to your post in red.
I am obsessed with the infinity move. .... Good!
I do also think about little toe edges but that's about it. Yes, the little toe edge (LTE) is involved.
....My question in this is, what is the minimum level of competence needed to achieve the infinity move? Is it railroad tracks? RRTrx are not necessary for doing the "Infinity Move."
....By this I mean a virtual 50/50 weighting of the inside and outside ski. 50-50 weight distribution is not relevant for the "Infinity Move."
....The pictures and videos always depict level 9 and above elite skiers. Not necessary; I can do it and I'm no Level 9 Elite skier.
....Approximately what skill level (1-9) does the infintiy move begin at and what technique should a skier use to reach this minimum level? Let's forget the skill level business and get the technique cleared up so you can learn it.
1. Do you have upper body/lower body separation? You need to be able to have your skis turn without your upper body turning. Why? Because skiing is a foot-leg sport. You need to motor your turns with your feet/legs, not with your upper body. Allowing your skis to turn without involving the whole-body will improve your balance and open up the possibility of short radius turns on all terrain.
2. Do you have angulation? You need to be able to create edge angles by shortening one leg and lengthening the other, while keeping the upper body upright (not tilted, not banked, not leaning in). Why? You need to motor your turns with your feet/legs, not with your upper body. Tipping your skis without involving whole-body lean will improve your balance and open up the possibility of short radius turns on all terrain.
3. Got those two? Now work on your short radius turns. Why? Because feeling the "infinity move" do its thing is easier when doing short radius turns. You'll be able to feel it clearly when it kicks in. There will be no lack of certainty.
4. Before Bob called this the "Infinity Move," I thought of it as moving your feet in a "Sideways Figure Eight" beneath your hips/upper body. Does that make sense? When sliding, one can slide those feet in all kinds of directions, because they aren't stuck to the ground ... as long as the upper body is not turning and tilting along with the skis (thus #1 and #2 above).
5. When you've got the short radius turns with separation and angulation, start paying attention to where your two feet are relative to your hips as they slide around under your hips/upper body. Constantly being aware of this is essential; you can train yourself to pay attention. Make short radius turns, and pay close attention to the location of your feet; do they stay downhill of the hips at the end of the turn? Do they go out to the side of the hips at the middle of the turn? Do they stay under your hips the whole turn? Just pay attention.... No fair looking; do this by Braille.
6. Next, work on fully completing your turns. Make your skis turn to point totally across the hill at the end of your turns. Work on doing this consistently in your short radius turns, while paying attention to where the feet are in relation to the hips above them.
7. Now start working for the prize.... Bring your inside foot back up under your inside hip as you complete your turns. Do not let it stay downhill of your hips, not even a tiny wee bit downhill of your hips. How? Do this by shortening that inside leg and tipping that inside foot/ski more and more to its LTE. Shorten that leg to bring that foot up under you. You may turn it as well to head back up the hill under you. This movement pattern is essential. Feel it happening, and feel how close the foot comes up under the hip above it.
8. You will find that the outside foot/ski also comes up under you along with the inside foot/ski, as the turn is completed. When those two feet are heading back up under you at the end of the turns, they are following the path of one lobe of the Sideways Figure Eight/Infinity shape. You are doing it, sorta.
9. Time to hit the jackpot: "over-complete" your turns. Do this by bringing both feet back up under your body so far that your hips and your whole upper body end up, by default, downhill of your feet. It makes sense to call this "Over-Completing" the turns. If you are able to track where your feet are relative to your hips, you'll know when you are doing this... no fair looking; you'll fall on your head.
10. When your feet get above your body (technically, your center of mass) on the hill (even a tiny wee bit), you'll topple onto your new edges without having to do anything else. Your body will have crossed over your skis without you moving it there; the skis will consequently tip onto new edges. Your Sideways-Figure-Eight-Infinity-Move will have initiated your next turn simply because you "over-completed" the last turn. Your feet will have followed one lobe of the Infinity-Move-Sideways-Figure-Eight path. Repeat as you link short radius turns, and you'll feel your feet moving along that Sideways Eight underneath your body quite clearly. A similar version applies to medium and long radius turns, but it's not as dramatic to feel as you are learning it.
11. This is what Bob calls the "do nothing" initiation. You didn't initiate anything, you simply completed the last turn. (I think he used that phrase....)
12. The first time this works, hold onto your socks. You will be surprised at the sensation. That next turn will happen lickity-split fast and unexpectedly, because you didn't make it happen the usual way. Enjoy!
Now, I may be totally embarrassed by Bob posting that I've go this totally all wrong. It works for me this way, nevertheless.