HGW can be a misleading/confusing name because in reality, there is nothing "hidden gene" about it, it's just another gene, it's not a woma with something special or hidden going on with it. It does make a few cool combos like the soul sucker and inferno, it is also a lethal combination when paired with spider...the result is a pearl type combo, solid white, major lack of muscle control and muscle tone, severe neurological issues, most likely will never eat and just waste away. I don't think this was disclosed much early on and there were at one point I think on wobp pictures that were supposed to be hgw spiders which turned out to just be spider womas if I remember correctly...but they were definitely not hgw spiders.