Nice team, i can't really rate it, as i don't know much about UU, but why aren't you using Modest / Mild on Raikou? You still outspeed Scarf Flygon with it (by 1 point), and you get better power, and also the ability to carry Aura Shpere (don't know if you need it just pointing out that you can have it). Being outsped by Mienshao isn't a big deal either, because your Golurk hard counters it.
Part of the OU QC team, message
me for a check!