Like most pictures... right place, right time, so just to catch it was enough... perfection would have been too set-piece...
A bit like RB wrecking "Fenders" designed to fall apart... I have some of those somewhere...
A piece of advice she (PS) offered me was take as many pictures as you can because you often only sell the one... This was used for one of their LP covers... I have one picture from the "set" this was from, but of a cartoonist I like called Ray Lowry... that's one I'll keep... Lowry toured with them too creating a bunch of odd-ball images for them... there was also a book, iirc...