I normally just go to WCL to figure out what seem to be panning out as the top legendaries and talents are for a particular boss and play that when it comes time for progression, but unfortunately that doesn't really work in the case of Tich, because people are doing padstrats where they dont drag the bloods out and they just keep everything stacked and outdps the boss.
Since its prog for us, were probably not going for a "max number pad strat for no reason." I raid lead, and my current plan is to hold thefirst set of bloods in on the boss and allowing the boss to apply a second stack to the blood tank before we bop him and burn them. After that, we'll continue to do double stacks but the tank will start dragging the adds out.
As somebody with access to all DPS leggos, I'm thinking bracers + shoulders so I have meta back up after the first bat phase? Could also go helm and play meambeam, since with 4-7 consistent targets it'll probably result in pretty high uptime on meta.
Halp.