(Still posting here, for future reference, in case some weary fellow tibially twisted traveller stumbles across this some day)
A nice clip showing the compensation of "tipping to the outside edge". i.e. like the massive wedge orthotics I'm now using provide.https://wikigait.wordpress.com/2016/01/05/change-the-foot-change-the-knee-and-vice-versa/
Great write up on the subject too.
And in case you were wondering how us freaks walk:https://wikigait.wordpress.com/2014/07/30/foot-progression-angle-exaggeration-external/
Interesting to me is that I'm seeing the same rearfoot valgus as I have. Which makes me wonder if the whole thing usually comes as a package.
And another link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2443695/
... biomodelling indicating a rather deleterious effect on muscle capability. (Tell me something I didn't already know). Guess those quad axels aren't coming anytime soon
All that said, I'm less pessimistic about skating with tibial torsions than I was 6 months ago. Pretty much all posture has to be modified to suit though. The basic idea is that when "getting low in the knee" when on one foot, the posture has to be modified to suit.
Normal* people fold up (like a fan) at the hips, knees and ankles. Everything stays more or less over the skating line during this fold up and unfolding that represents a push. i.e. in particular knees stay roughly over the skating line. nose over knees over toes and all that jazz.
With the likes of myself the knees always point 35ish degrees away from the skating line. Which means when I bend my knees (i.e. fold up at the hip, knees and ankles) my knees are no longer on the skating line. Which means the hip needs to be pushed out in the other direction to maintain the CoG over the skating line. This carries the complication that managing the rotational momentum of hip/lower torso becomes trickier (i.e. the stuck out hip tends to store more rotational momentum than you'd ideally like. though I suspect with sufficient training this could lead to some really interesting and unique moves).
I've found it's better to face the torso 35ish degrees (my amount of tibial twist) away from the direction of travel on average. It leads to freer knees and easier knee bends. This gives essentially zero hip internal/external rotation, which means the glutes and quads work more effectively.
Trying to be normal is a killer. Skating like a normal person just won't work. e.g. trying not to stick out the hip will just make it impossible to get a deep enough knee bend, or will torque the knee joint (ouch). Ditto trying to face forward and be symmetrical during one foot power pulls etc. Trying to force normality leads to nothing but awkwardness. Gotta be a student of physics and your own anatomy and relegate conformity to the scrap heap where it belongs.* Pronounced with an appropriate sneer.