note Albannach I just wanted to mention that this just screams to me for an adaptation of the [id://31147|Breeding Perls] solution. If it weren't for this darn job I'd probably obsess about it for days, but since I haven't got the time now I'm throwing it in the ring here in hopes that some enterprising and terminally (ha!) bored student will have a go. C'mon, this is doctorate material! 40304 40304