with tanking practice makes perfect. You will lose hate sometimes, take a chance to look at why when you have a moment after playing ping-pong to get it back and figure out what you could have done differently (sometimes the answer is nothing YOU could do, but something your party could).

Overpower/Flash are good to set hate for about the first 20-30s, after that you either need another one, or to start cycling your +enmity basic chain. You will also need to make sure that DPS are focusing on your target, or if they aren't that you can switch to the one they are.

Provoke & Flash are VERY nice skills to have for a War, after that it's felt like a bit of a wash