Re: New racquet for aggressive baseliner
the wilson k61 tour is only very accurate if you have the ability to use it. if you hit with a lot of topspin on your forehand i would assume you have quite an extreme grip, in which case the wilson 61 tour would definitely be a bad choice, as it suits players with a more classical technique. if you want to look at a wilson, check out the kobra tour instead
the aero pro drive cortex is pretty much the same as you currently have, the only differences being the aero throat shape and a slightly lower flex. these combine to help you generate a faster swing speed, more spin and more control. you could also look at other babolats, the aero storm and aero storm tour, for example. the aero storm is just a slightly smaller headsize version of the aero pro drive, and the aero storm tour is a heavier version of the aero storm. they are both spin friendly rackets, though the tour version gives more control and less power; the power comes from you.