Leg of Steel is a 100% worthless VA. If you're punting that deep often enough for the VA to impact a game, your team has a lot more issues than it's punter. I'm all about helping a team out, but building for a successful team not an unsuccessful team (let the bad builds fill the bad teams, IMO... build a good player, you can ALWAYS find a quality team to play on).
Okay, so outside of that, everything looks fine. I would have taken confidence up a lot sooner to take advantage of the gains there but I wouldn't spend 4:1 on it so whatever.
People say stamina is worthless, but decide for yourself. At 10 stamina I was ending games at 70 energy. A simple train (with jumping for you, maybe), and I was ending games at 97+ energy.
As far as SP I think you made some mistakes by not spending enough on conf/punt but you could always go to conf/punt... vis to 68 is fine, as would capping agility to see, or conf to 73.