The Vulcan is a huge flying wing with massive aerodynamic forces on a relatively lightly-built airframe to give the lifting capacity required.
My vote is for it to be flown conservatively. The one certainty is that if it breaks we'll never see another one in the air.
An exciting routine doesn't have to be a stressful routine! Bob Hoover's stopped-engines Commander routine barely stressed the airframe beyond the nominal 1G.
See also the fuss caused by Tex Johnston aileron-rolling the Dash 80; to the airframe it was just another 1G cruise along the coast.
Aileron rolls are gentle and impressive. Snap rolls and slow rolls are stressful, unpleasant and impressive.
I am not saying that such manoeuvres are safe, just that what looks dramatic need not feel such to the airframe.