That one doesn't really look snow to me either. Then again, sometimes snow can be hard to identify. Did you get the parents from a place you trust? To me the male looks banded as well, so not truly a typhoon. It's kind of hard to tell for sure without seeing the tail, though.
Well as I said, mack snow can be hard to identify visually in adults. If they produced super typhoons, than they are surely both mack snow typhoon. The baby you pictured could be either typhoon or mack snow typhoon. Since the parents don't look particularly snow, you probably won't be able to tell visually, but you could find out for sure by test breeding. =) The male does look banded to me, but banded geckos can still produce patternless stripe typhoons, and since you have done this, it's not anything to worry about.