GrandSlam Legend said:a 1 oz difference isnt significant or very significant... its negligible! BreakPoint is very wrong in his analysis.
No kidding.
From the USRSA website:
(http://www.racquettech.com/members/tools/recoil_weight.html), "Recoil weight is the racquet's resistance to movement around its axis through its balance point (center of mass). This creates stability against the ball pushing your hand, wrist, and arm backward during a hit. In other words, it minimizes shock."
(http://www.racquettech.com/members/tools/hitting_weight.html): "Hitting weight is also known as effective mass and is the amount of the racquet's mass actually involved in the impact at any given location along the axis from butt to tip. If the ball hits at the balance point (or center of gravity or mass), the racquet behaves as its full mass. Anywhere else, it behaves as if it were lighter than the actual mass. At the tip, the hitting weight is generally about one quarter the actual mass. At the center of strings it is about half. The hitting mass is important because the power of the racquet at any given impact point depends on the hitting mass at that point. More mass means more power."
Again, balance and weight distribution ABSOLUTELY matter in how much shock or momentum you impart on the ball. How much? Let's look at an "11 oz" frame and a "12 oz" frame.
Recoil Weight LM Rad MP = 156.5
Recoil Weight nSixOne 95 = 175.7
Hitting Mass LM Rad MP = 164.8
Hitting Mass nSixOne 95 = 161.7
In this case, the 11 oz frame actually puts a little bit MORE mass on the ball than the 12 oz frame. That's weight distribution at work. You pay for that magic trick with less resistance to shock, but if the balance was shifted, the numbers would shift. Period. You can add 50 grams of lead on your frame. How much of that will actually contribute to the ball at contact depends on where you put it, right? Why doesn't that same reasoning apply in this case?
You'll have to ask the breakpoint. He's the one who passed high school physics.
It gets better:
TW power rating in LM Rad MP review = 72
TW power rating in nSixOne 95 review = 72
Maybe they don't know what they're talking about?
Just for information's sake, rackets traditionally considered big timber, with well deserved reputations for bludgeoning the ball (Yonex RD-7, Volkl C10 PT) have hitting masses ~180. Two ounces more static weight gets you maybe another 0.5 ounces in hitting weight.