You are so right, "trying to hard". And, it can make my head ache. :) I now understand you; the key: "...just the # in each tier..." So simple!

Brilliant, Nick. And brilliant, Michael!! Really!

Thanks,

Leonard

Edit: it took about two minutes to complete the hole layout! A note for others struggling with this in the future: in the # field of the circular array info, the first tier number would be 6 (holes) and each successive tier, n+6, where n is the previous tier's number of holes.

Thanks again all.

Leonard