Is anyone running 4x DK + Healer for heroics?

I'm running four blood, with similar stats to my primary
http://eu.battle.net/wow/en/characte...ubone/advanced

Tried a heroic last night, got through trash ok - but wiped at the first boss a few times in Grim Batol. The first few times were because I killed the trash mobs who then wiped me! Almost killed the boss on the third try, but another wipe and then bed. Healer was a pug, not sure why the wipe - but the dks got picked off near the end.

I'm running in blood presence, 3 main attacks death strike, rune strike and heart strike (until I changed to blood strike to prevent trash killing on boss).

You'll see i've got PVP gear on - so not ideal, but it seems to be better than PVE stuff I have - except I'm missing things like dodge.

What would other people stack/wear for heroics with dks?