strung weight

I have just started playing around with trying to standardize multiple racquets with regards to weight, swing weight, and balance. Which is the most important? For example I have two racquets, where if I match the strung weight, the balance is off. If I add weight to have the balance match...

TWU Guys; You indicate in the "Performance Analysis Tool" that Wilson Blade (16x19)2015 has a strung weight of 329grs, when the real should be near 318grs. Also you state in that analysis a Swing weight near 343 when you suggested 321 in the original racquet´specs sheet. All of this "weird...