Not everyone gets deca dick. If you're not prone to it, then there's no need to worry about it. I like your cycle, but I think you need to do at least 50mg of the var or just drop it completely.
too many things to think about , but here's another.
first he may be prone to estro gyno, but not prone to progest gyno. i say he run the deca alone w/out the test to see if he gets gyno symptoms still.. then he will be able to determine what ancillaries he may need in future when he runs them both together.
NOT EVERYONE GETS DECA DICK. i am currently running more deca than test in my cycle. and my libido is actually better than it was when i ran more test than deca. i almost miss the "long nights" the deca gave me in the sack (i'm sure my girl dont)