Susan Papp Mlodzienski response to your question you posted here on the feed:

1. Hamstring engagement.. make sure both heels are actively squeezing towards your booty
2. The sequence of the setup.. it's important to create space between yourself and the pole (which is why spin can be helpful for this move.. the spin helps create some of that space):
   1. inside arm is high and straight
   2. outside reaches out, hooks at the elbow
   3. top arm releases so the elbow arm can grab the inside shoulder
   4. the free hand grabs the foot

I'm posting a slow mo video of this setup.
Update me!!