Neither of those are in production at this time. Not from a marketing prospective, anyway. As far as I know, we never had a pie bald. The one Tim had in Vegas was not. It merely had one white spot and that was associated with an adjacent spinal deformity, indicating the lack of pigment in that one small place was the negative response to whatever stimulus caused the spinal deformity. It only lived a short time. White spots on corns are semi-rare and to my knowledge never gave rise to true pie bald (pied) corns.
A disease related to what one would be tempted to call "calico" is still out there. Nothing to worry about. Only corns carrying the gene are affected. It's not a contagious pathogen. The latent depigmentation of scales is associated with a condition that also causes blisters. The longevity of those animals was/is short and therefore they were/are not popular. Since it was a simple recessive trait, it would not be smart to promote this infamous trait. To me, this would be akin to promoting legless dogs or something like that. If it's a negative trait, let's kick it outta the pool. The gene pool.
The pied sided bloods a few of us are working with now are not like either of the above traits. That's why I named them pied sided instead of pie bald. The white doesn't appear to be developed from the same mechanism as pie bald (pied) and we're still unsure if this trait is linked to bloodreds or if it can be promoted in any corn morph.

South Mountain Reptiles