Well just when I thought I had strong knowledge of pretty much all the PH's I found one more. It's formula is 17a-methyl-17beta-hydroxyestra-4,9(10)dien-3-one. It says it's a clone of a previous Gaspari supp. which was called Methyl-D. This was way before I got into the lovely PH world. Is this any good? How does it compare to the more popular of today's common PH's?