I bought the 49 credit Red balls, I forget the exact name of them. I am wondering the specifics on these golf balls, and I am sure all of the new golf balls have the same features. Do we really only have 3 of these balls? Is that for a round, or the whole time you have these balls? Also, the hits meter, do they only last that long and then you have to get rid of one? Does the performance of the ball get less as your hit meter gets lower?