Excellent job. From one 40 year old (41 in 2 weeks) to another, I have a very simliar build just about 5% more bf. I am currently woking down to 10% and trying to hold the muscle.
The big problem for people our age is how do we put on mass, keeping the BF% down. Our hormones are on a major decline and our metabolism is slowing to a crawl so to add mass(muscle) without AS is a HUGE and slow challenge.
Pro-Hormones may not work for the 20 and 30 year olds but I believe they might be of use to us over 40's to give a little kick where we have lost some.
I would say to give them a try for a couple of months, you really don't have that much to looses.
Again, excellent job.