To prevent mechlab hijinx is as easy as prohibiting the number of weapons that can fire in one, instant volley. The precision of these configurations has always been the most difficult aspect to balance, and staggering fire is perhaps one of the few feasible ways of reducing that precision.
That said, I've never been without a good game. Especially lately, if Huntress is full, you've almost always got a handful of fellas on other servers working it up. It's a blast.