Thanks for the advice and input everyone. Looks like a nice homework list to work on this weekend

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I'll have to be more conscious of my shoulder alignment heelside. It may be a combo not being inline over my board and hunching over in the shoulders. I know I catch myself in bad posture (hunching over in my shoulders) at work and not sitting with a straight back. It could be I'm unknowingly doing that while riding too, and I've got a feeling I'm probably opening my shoulder up past my nose- this opening referring to actual twist in my spine. I'm riding at +15/-12 so I know I shouldn't be opening too much, but probably why I'm not getting the thinner carve lines heelside. I'll definitely give the fore / aft movements a go and try the different unweighting techniques
gjsnowboarder- thanks for your detailed instructions. Maybe a stupid question, but what is "CM" in your explainations? Centered mass? I get the gist of what you said, but unsure of this term. And thanks for the switch diagram, makes a lot of sense.