@SavvyStringer @StringGuruMRT @Irvin - as a differing perspective, the whole realm of matching frames, measuring DT, finding the most aerodynamic dampener, etc. can lead to people concentrating more on their gear than their game. I don't find a gram (or 5 - 10 for that matter) here or there make that much difference to my game. I play equally well with each frame and have adopted the mindset that there are too many rackets out there to spend a lot of time modding one to "fit". Manufacturers offer more choices in more weights, flexes, string patterns, and other configurations than ever before. They do a better job of figuring out what works than a jack leg like me. If/when I change frames again, it'll be to something really close to what I play with now.
This conclusion was not rushed to. I look around at the really good players at our club. They, for the most part, play with the same frame for 10 - 15 years. One of the best players is still playing with a Wilson 6.1 16 X 18 K-Factor. He's been given 3 - 4 of them as well. I string for him and one of them is even a different grip size. He did take one out of the restring rotation recently; it broke. Now, even though it was broken and humming, he played with it (and extremely well) until the strings broke. Another player who played D1 at Baylor, plays with the same old Pro Kennex (the only player that does) and is not interested in frames.
Finally, a young fellow who was around here, played with a Babolat Pure Drive. He played with overgrips that had the sticky on the starting end. He wound them backwards so he could "finish" them off with the sticky part. I asked him what tension/string he played with and he said he didn't know or care. He got a gig at John McEnroe's Tennis Academy a couple of years ago after teaching in the Caribbean for a couple of years.
I say spend the money on lessons and practice, practice, practice.