I think we have heard of a leg-specific DPS check; I also buy in to the speculation of four legs in A4S though. We should get more info this week at least, as weapon day lets the next tier of groups through A3S.
I should also mention that i am still 100% for DPS getting weapon first. After all, they are DPS and their priority is the DPS check. The extra WD is gonna likely always trump everything else for them.
I just specifically tried to explain why I as an AST made the decision to go body armor first. The glamour was nice, but there was a fair amount more to it than that.
Besides, by the time i get anywhere near A4S I'll have the weapon anyway. Moot point for me.