Looking for some feedback as I haven't found any good discussions about this. For a Shaman/druid melee PvP build, is it worth it to dump 5 points into long memory?

My thoughts are, based on a priority cast system with Crushing Blow being the lowest DPS skill and the fact that in PvP scenarios you're not in constant contact with an enemy, you may get slightly more out of the 5 points somewhere else, (Dauntless Courage, or even Favored of the Valnir).

Anyone have any experience with builds containing or excluding Long Memory?