i posted that video on the Johnny jackson lift claims thread that sarcams posted...While not being perfect form, i think its very good for the kind of weight he is using..
For what i could saw, no one here do that much of weight on lateral raises, so it seems obvious that no one here can do that weight with BETTER form than that...
May not work for others, but it works for him, and i give the guy props for that (and for the fact he do that with this kind of monster weight!!!)