I saw your post yesterday and wished to comment, but somehow forgot to. I have been running an analysis and had my first post up last week. Do go through my Blog, it's titled "Steem Power distribution trends". I deliberately tracked the "Active 24 hours" metric and it was clear what was going on.
I'm into the third week now, and the observation holds - Steem Power is indeed in massive (re)distribution, and a high creation rate is required to back it up. I shall post an update some time this month.
I didn't know the exact number, but 350% seems about right to me.
Thanks for that @liberosist I will keep up to date on your posts.