Hey, ESL-63 owners: Can you hear the 'rings of the tree'?

My personal exposure to ESL-63's is nearly zero, I heard them decades ago. But I love the whole annular ring concept to emulate a point source from a flat sheet.

My question is, do you ever hear it? Does this ever intrude into the listening, or generate any audible 'lobiness' as you move around?

Thanks.