Explaination of different attributes?

Hey there. 

Puck control is how well you retain control of the puck. This helps with receiving passes and getting settled. When you're settled, your accuracy for passing and shooting goes up. Offensive awareness affects how quickly you react to within the field of vision for offensive scenarios. So, higher offensive awareness means you react quicker for gaining control of the puck. Then, the puck control attributes kick in.

Hand eye helps with batting down pucks and deflections. Since saucers passes are in the air, hand eye helps corral those better.

Balance helps you hang on to the puck when getting bumped. It doesn't have any affect when you're not carrying the puck. Weight has some affect on hitting and balance though. Mainly, it's the relative speed of the players and the angle that you hit them at plus the attributes and weight.

Strength and puck control help No Contest a bit. Anything that impacts pickups will help since it doesn't change your reaction time or if you can accept the puck.

Hopefully, we'll have better explanations in the future. The thing is, if we say x ability gives you x% boost, you're only going to focus on that number. There's more to it though as it's not so much about a percentage boost as raising the chances of success. Which depends on different variables and conditions.