you need hidden gene from both parents for a soul sucker. so you need a hidden gene carrier woma and a hidden gene carrier lesser.

even then there is a 1/16 chance of hitting the soul sucker. i think it works as a 1/4 chance, being as you have 1/4 chance of a woma lesser it would be 1/16 for a soul sucker wouldnt it? with it needing the woma lesser and 2 copies of the hidden gene?