On Fri, Jun 12, 2015 at 10:02 PM, Reuben Martin <reuben.m(a)gmail.com> wrote:
  Does anybody know if there is any way to pull up/down
with JACK? And if
 there
 is, can ALSA deal with it very gracefully?
 
There's no way to do this.
Ardour does pull up/down but it has nothing to do with JACK or ALSA.