to give you a clue: I had a 35yr old that popped in FT after about 8 weeks. ;)
He never popped in any other skill I trained (inside skills), even though he got a lot of training there.
Why did I train him?
I didn't, I needed him to become champ in Div II and later to reach the top in Div I, so I put him on court, and he was in a trainingposition.
At least I now make someone happy with the info this guy gave me.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.