hets refers to heterozygous meaning that THAT snake in particular doesn't actually show the gene but is a carrier. So no, a het albino and a het lavender albino should look exactly the same... (like a normal) This is why record keeping is essential... Buying hets is ok but you should make sure that you buy them from reputable breeders with good histories. Lavender and normal albinos are not interchangeable, breeding them together will produce double hets...