no. first of all the snow would take away the carrot tail if that matters and it would take a long time to take the spotting back out of the body and head. and also youd need a really good line of snow that is completely white as most mack snows grow up to look like normals. there are loads of white morphs out there though
The only all white snow's that I know of are the super raptors. They are just about all white, you can faintly see some of the albino color on the super snow's pattern. They are awesome looking gecko's. Check out fallen angel's geckos, she has some amazing hypo-ish mack snow's with all white body's. The best i've ever seen. I want to line breed snows to look like hers.
Super Hypo MS are called Creamsicles. They are usually a whiteish orange color. The only way to make a pure white animal with no spots is to use blizzard or murphy patternless and make a combination morph. You would need some kind of albino strain and possibly another gene to whiten them further like Snow, white and yellow, etc.
Diablo Blancos are currently the most popular and widely produced of a white gecko with no spots but many of them still have a lot of yellow. I have a pair of Mack Snow Diablo Blancos(MSDBs) and am working on SSDBs. The MSDBs I have are really nice, they have very little yellow to them.
Reptiles by Mack has these two paradox geckos. Ones a baby that had a super snow albino face, and mack snow body, and they also have a super snow with a strip(its not really a paradox spot looking area) of hypo. They're really cool, and really expensive