The Tier 16 4-piece made for some awkward gameplay if you had 10 stacks going. having your next 3-4 abilities only cost 1 each caused some Chi capping issues. Having it only work every 10 makes it not as awkward, but they may have over-done it on the nerf. Need to do some math on it. I'm thinking (though I like I said I don't have the math in yet) it's only going to provide 3-4 extra Chi per minute. not a whole lot if you ask me; compared to the 6-8 or so it was before.
Overall, I'm still holding out another week. There maybe some later tuning to abilities that might help.