That's interesting. From the floor is going to take a lot of time for me to figure out. Is it weird that my arms feel like they are the longest when I am setting up? haha.
Unfortunately because of my schedule I kind of have to address one thing at a time (which I picked as refining my pull and foot work since they go hand in hand), but the start isn't hindering me too much at the moment and my weights haven't gone down as a result of the switch so I am at least stepping in the right direction, though it may be slowly.
It is very hard to find anything on dynamic starting out there though, I think it really may just be a personal thing but who knows?