I'm finally getting a little deeper into FlowFit® after too long putting it off, and I've noticed a couple of problems in my movement.
1. In the springing twist, I find it difficult to reach behind myself and find the floor. In order to make contact, I need to lean way back and project my knees forwards, which would really worry me if it were a weight-bearing exercise.
2. I actually find it a bit difficult to get my knees close enough to my chest when doing spinal rocks to be able to come back all the way to my feet, although it's easier if i use my hands to pull them closer.
After messing around for a while, I realized that there seemed to be a common thread: in the initial "trinity squat", my butt isn't coming down as close to the deck as Scott's in the video, so I have farther to go reaching behind me (as in the springing twist). From reading powerlifters discussing the squat, I'm guessing that this relates to tight hip flexors, which I think would also explain the problem with the spinal rocks. (And would make sense, given that I'm lordotic.)
Any advice from the forum on how to increase my depth? Are lots of slow bodyweight squats the answer, or would something else work better?