I'm glad to hear he's a lot stronger. One rep at 225 lbs isn't pretty weak for an NFL player. 3 sets of 8 is a lot stronger.
If he can be a threat underneath, he's going to be a Pro Bowler. We haven't seen too many plays where he can run after the catch. I remember one play in the Sants game. It was on that TD where he caught a 20 yard pass and just out ran everybody to the endzone. Getting him the ball in a position where he can run with it is key.