I also find this genetic stuff really interesting!Carol M.My son also shows the P30L mutation on his "better" gene, so that makes three! He has two salt-wasting mutations on his other gene copy. Officially, he is listed as "non-classic". As far as I am concerned, he is "simple virilizing"...severe enough to have highly advanced bone age at a very early age, but not severe enough to have elevated renin. He did have a noticeable preference for salty vs. sweet, when young. Also always had a gigantic thirst. So, in my opinion, he is also very true to genotype.