I use the Pure control Tour with some lead lead so can't comment about a customized Pure control. I think different players experience and perceive control in different ways. I also realize that players control the ball in different ways for example some control the ball with spin, some with precision etc. I can though say that imho the PCT has excellent control with every shot and from every area of the court. Personally for me, I was not a previous Babolat user so it was an adjustment to get used to the woofer grommets and at times I found that due to the woofer grommets, the ball would sometimes explode uncontrollably off the string bed. However, now that I have become somewhat used to the woofer grommets (not completely yet, but hopefully getting there), I appreciate the great control and feel that this racquet offers.
As said, like other aspects of a racquet's playability, I believe that different players can find a racquet to behave differently from a control perspective.
As far as power goes, while I don't at all find it overpowering, I do find it to have decent power for a control racquet. I know that many find it low powered and I would not argue that as at the end of the day it's still a control racquet and it's still relatively low powered. I do find it to have pretty good pop though (I realize some may see pop and power as the same thing). At times (while I'm pretty sure that it's not true) I think that it may be the woofer grommets. It seems that the ball comes off the woofer grommets string bed with more pop than with regular grommet string beds.