When you send the blocks back how do you decide who gets what.....I am not part of these swaps yet....but I like some groups of squares more than others....so how do you be fair and do people ever request I want so and sos. i know you get say 40 people joined and a person gets 12....why send their own back they can make an extra for them selves...... can someone ans just some of the questions I have....please no one take offense