You are basically doing the opposite motion around 6 minute in.
Going IR into the power pocket should create a bigger pocket/sling bringing the disc closer to body behind the elbow(out) with better tension/load.
When you go ER into the power pocket it drops the elbow down/in and creates slack in the system.
Looks like you are jamming up your x-step trying to keep your pelvis too forward facing or square. The more the pelvis starts turned back, the easier/more fluid the x-step. Note how Paul's right knee is facing more away from target so the hip/butt lead more and allow the rear foot to step behind more easy.
Your right knee also ends up too over your front foot while bracing like the FH thread you started. You need to resist/push back away from target more. Do some ice skaters/two-step dinglearm.
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