I don't know about corkscrew (which is the name used for a sit spin variation), but I do remember this: https://youtu.be/44JXNGSID1s?t=91What about a Hamill Camel to sit spin?
I also recall Michelle Kwan doing an unusual transition from camel to corkscrew in one version of Scherazade. I wonder if that would count.
Not sure if this would count?
requiring significant strength, skill and control and having an impact on the ability to execute the position change.