Tennessee, the problem with the Huges amendment, really isn't one of full auto acceptance. It is one of Tax Law. By closing the NFA registry, the Congress has essentially rendered its own revenue making ability, moot.
There are several theories "floating" around on that issue. But before I would broach such, I would want enough other gun cases to be in my favor, so as to dull any full auto scare... Hence getting rid of the remaining AWB's.
But yes, a legislative remedy would be much better than a court mandate. Such a remedy would still be better (and easier) with a lot of case law behind the rights of individuals. That and time. Time to show that the worst (or even all the dire) predictions of the anti-gun crowd haven't materialized.