Any curious about my take on last night's Voigt/Heppner event can see it here. For me, both must contend with the echoes of their mid-to-late '90s selves, when they weighed more and were in amazingly solid vocal form. Heppner's weight loss was part of solving a vocal crisis; Voigt -- looking slimmer than ever, incidentally -- seems to have shed pounds for other reasons. The years, of course, have also touched them both.
On the evidence of last night, Heppner has again reached an age-weight-voice equilibrium, while Voigt has not. But that's just one data point.