Yeah stopcasting doesn't really work for me. If I work it into a macro I can go up to 10 seconds without actually getting an auto hit.

I have resigned myself to 3 separate buttons for the pallies at this stage. One is a FCFS rotation for holy power generating abilites which is my standard spam macro. I can maintain about 3.5k just spamming this macro ignoring AoW and holy power.

If I add in TV as a separate cast when all 4 pallys are loaded and same with Exo, I can sustain up to 4.8k dps.

Running a single pally manually hitting keys I can get 5.5-5.8k. The best castsequence I have come up with is 4-4.2k.

On a sidenote 4.0.3 Divine Storm has gone back to mana based with 4.5sec cooldown. Less damage than prevously but half the cooldown and some sweet sweet passive healing back for PvP etc.