wookie #17 - 
after over 150 GD shows, I never once asked that question.
your mileage may differ...

as a huge fan of Jerry - I think some songs covered by JGB would fit better for GPN - 
the strong use of the B-3 and leslie on songs like Second That emotion, the Think, Tore up,
that's what love will make you do.....a much better fit .

every band seems to like to mix in a few covers once in awhile - and this by no means takes anything away from their own material. 
I just think that musicians like to perform other sings they like. 
Mystery Train versions by GPN are so strong, it really deserves a place in the rotation.
just my 2 pesos