So that is also an interesting point that I haven't looked into as much in regards to doing 2 oGCDs between GCDs during RoF due to the slow. The only main reason I don't due it currently is you potentially holding back your GCDs when doing that. Also from what I've seen getting one extra chakra point won't make that much difference seeing how fast you get chakra points once brotherhood is activated in 8 man content.