Originally Posted by
Senen
As I said in my first post, during Recklessness, Slam>OP deals more damage, but if you're using Recklessness with Skull Banner (and you should), the difference is rather tight, and OP has the benefits or shortening the cd of MS and costing less rage. I still think that during a CS with every cd (including +% crit from trinket), Slam>OP is slightly better than OP>Slam but it's also more rng dependant.
Note that if you have the 4pT15, Slam>OP by far.
Btw, you shouldn't use Dragon Roar during CS, since DR ignores the armor. Actually, you should use your cd before DR, except for the +%crit ones, then use your other cds and CS.