Whatever the sound crew have done with the bass should be set for every Glastonbury gig forever, every band must use a Stingray and never touch the dials again! First time ever heard what the bassist is playing.
Why don't bands like GnR just smash out all the hits?
That's ten minutes of pointless jam night noodling followed by something we've never heard before.
If it's not your gig just play your hits.
For a master class see Queen at live aid.