That is the FIRST corn I've seen combining Charcoal with either the Motley or the Stripe genes. Congrats. 
Pleeeease post photos of that fella as he grows. 
I expect the Charcoal/Phantom Stripes and Charcoal/Phantom Motleys will be real stunners thanks to the 'Hypo-like' inlfuence of the Stripe and Motley genes.
Your Charcoal Stripe has nice colours and an interesting pattern for a Stripe. At first glance it looks like a Striped-Motley. But, since he DID come from DON I have no doubt your snake is a Stripe, and not a Stripe-Motley. (All comes down to the head pattern, and Don most certainly knows how to decipher which is which.)
Congrats again!

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"Have you hugged your drummer today?" --- Me