IMO every V.A. should have a pro and con like Jump the Snap does. The V.A. would then not just boost your game abilities. You would be better at one thing, but worse at the other.
E.G.
Ball Hawk
This player has a nose for the ball. Each level of Ball Hawk gives a +2% bonus to speed, agility, vision, and a +1% penalty to energy use from the moment the player sees a pass coming until it is caught or dropped. Applies on both defense and offense. (so the player would make the play with the bonus to attributes, but also sit down more with the penalty to energy)
E.G.
Ball Hawk
This player has a nose for the ball. Each level of Ball Hawk gives a +2% bonus to speed, agility, vision, and a +1% penalty to energy use from the moment the player sees a pass coming until it is caught or dropped. Applies on both defense and offense. (so the player would make the play with the bonus to attributes, but also sit down more with the penalty to energy)