O.K. Im gonna throw out an idea, but here is the disclaimer. I obviously have never played in your home game so I am only speculating. Over a 4 month period he in all likelyhood is not getting better ...
I am new to tournament playing and I play at partypoker (buy-in 5+1).
The problem I have is that my chips seems to be "eaten" by the incrementing stakes.
One very common tell is someone looking at their hand if the flop comes down three of the same suit. They probably have two big cards, maybe a pocket pair, and are checking to see or make sure whether ...