Hi Derek, I am truly awe-struck by these patterns of yours. This is the first time I've seen anything completed by you - not intended as a dig..well, not really . But seriously, if you're spending most of your time producing gems like this one, no wonder the Spit, Phantom et al are taking a back seat. At some point an illustrated tutorial would be a real treat, even if it can't be at the other place for reasons of scale.
Yours in admiration,
Jean