Thanks for all the help so far guys!
I went out tonight and had huge success. The couple of things we noticed wrong in the video (open position and little to no pull through) were the two things I focused on. Worked on the stand still again and was throwing it 300-320' with a lot more ease. Even got my putters out to about 275 today, which was awesome.
The big change for me came from how I was rotating my body / shoulders. In all the videos above, I rotate my hips so that my chest is facing away and my back toward the target.
Today, I focused on keeping my hips 90 degrees from the basket, just like when you line up side ways. So when I reach back, my hips aren't just spinning and I have the torque between my shoulders and hips. I'll have to video myself this weekend again, but this form change allowed me to pull through more. I wasn't able to have a true pull through when I rotate my hips all the way back.. not sure why, could be a mental thing, but either way it worked for me.
The other thing I noticed was just how different the disc felt coming out of the hand. I guess when you have a pull through, it feels like more snap. I ended up throwing a ton of them way too hyzer, but after a few throws could feel how I can shift my wrist to throw it flat.
Overall, very productive day and felt much easier getting to 300-320'. However, as soon as I started to try a run up, all hell broke loose and form went to crap. Will be a while before I start X-Stepping.
Super pumped and can't wait to get another video up.