Hi, everyone! I'm going to buy a Wilson K Blade Team racket, however, I'm not sure about string and tension which I need to select when I order it here. There're a lot of strings to choose. Could you recommend string and tension for me as a 3.5 baseline player. In addition, is the bag, Babolat NEW Pro Player 6 Pack, too big for two rackets, two pair of shoes and some clothes? Do I have to go for the bag, Babolat NEW Pro Player 3 Pack? Many thanks.