For what it's worth - I have 18g of tape under the grip (9 up both sides, which makes the grip more like a Head type), 8g around the hoop and 7g on the throat just above the grip. Makes the total weight with strings about 350g and more head light and makes the 500 tour a dream racket as far as I'm concerned. Also use Head sonic pro 17s @ 48 - 50, a low tension but doesn't lose control.
Solid, good swing-weight, manoeuvrable etc. After trying just about every other racket trying to find a good players frame I decided to lead up my old ag500tour as none of the others were of the same standard. I really think Aerogel is the best technology for rackets and if other manufacturers used it they would make much better rackets.
In case you are wondering, I did try the 200 and 200 tour but they lacked power. Also the 500 tour is one of the very few rackets I don't get any problems in wrist, elbow, shoulder etc.