Trying to avoid a brain fart here

I bought a ball python back in March and she was described as a 100% Het phantom ball python. Now this is the possible brain fart - phantom is co-dominant so it's a visible morph so the effects of one copy of it can be seen - is that correct?

My reasoning for thinking it being a brain fart is long working hours this week and a bout of insomnia.

You are correct. A heterozygous (het) phantom is an animal with one copy of the the phantom gene and is a visible partial expression. The hundred percent part makes it confusing and should be left off. A homozygous phantom (Super Phantom) has two copies of the Phantom gene and shows the complete expression of the gene.

Normally in the hobby a het Phantom would just be called a Phantom.

Thank goodness thought I was being an idiot or missing something.