one thing we know for sure is that she is a super hypo (or will be. we have some people who count spots). you can not know until you breed her if she is a mack. chances are she is just a super hypo just not a lot of tang. just because she is lighter doesn't mean she is a mack. and honestly you can't call her a mack if you haven't test bred her, but that will be a long time from now from the looks of her age and size.
I have some Mack siblings that I call "Pastels" (the ones that look slightly different from normals), that lighten up alot as they grow.
There are two geckos I had to seperate, and I forgot to mark which was which. Now I have no idea which is the real deal. Ooops! So it may be a Mack Snow, and could be a Pastel or sibling, that was sold off as a "normal". It happens, and I`m sure that is what I will have to do with the two I just mentioned.