Here's the thing. I'm looking to purchase Itech Prodigy Sr. set from a person. It's a physical transaction (meaning we pass the goods via a meeting). He has already told me that the pads are weird in that one pad has two knee stacks and one has none. Is it easy to reconfigure it? Does it dmg the pads in the process? Any ideas? If this can't be solved I will turn away from this deal. Also, I think I am correct in thinking that the knee stacks are very important for a goalie right? what part exactly are they?