I am definitely NOT rich. lol I have no kids and really no expenses so I am willing to spend a little on my hobby. That being said, I love my racquet and I have played with heavier racquets. My diablo xp is under 11 ounces (according to TW specs). I have played with the graphite longbody, Yonex RD power 7 long and enjoyed them. Both are at least an ounce heavier than my racquet. There is something about my racquet that I love, sometimes I just wish it was a little heavier. I've slapped some lead on there before, but my attention to detail is not the best, so I was looking for someone else to do it.
I have tried the pro staff 6.1 stretch and that was too heavy.. was like a club. I'm pretty strong gym wise, so no need for you guys to tell me to go lift weights... I already do (I use to work as a personal trainer). lol
Malisse's racquet is just over 11 ounces.. maybe that'll be my sweet spot.. I think maybe I'll just add a leather grip and a little lead at 3 and 9....
Don't just slap some lead here and there to see if you like it. Let me try to explain how simple SW is, assume you have a racket with a 315 SW and you want to bump it up. I'd add 5-10 'SW Units' (Kgcm^2) at a time until I got to the point where I liked the racket and I would play with it for at least a week to make sure I liked it. Now you must determine how to increase the SW by 5-10 units. The increase is equal to the distance from the SW axis (10 cm) squared times the mass in Kg. The distance from the butt to the inside of a 27" racket is ~67.7 cm minus the axis point 10 cm leaves you 57.7 cm squared is 3,328. Now comes the mass for 5 units divide the units by the square of the distance 5/3329 = .0015 Kg or 1.5 g. If you have a 27" racket no matter what the SW, balance, total weight, or twist weight is; if you add 3" of 1/2" lead tape that weighs 0.5 g per inch the SW goes up 5 units. If you want to add 10 units add two 3" strips at 12 o'clock.
Adding a leather grip doesn't almost nothing to the swing weight because your adding it at the axis and your distance on the average is 0. Zero squared time the extra mass is still zero. Don't waste your time. If you add your mass at 3 and 9 you're messing with the twist weight, which changes the feel of the racket much more than changing only the swing weight. Chances are you won't like it.
Stay simple at first only changing SW. If you don't know how much the lead tape weighs add only 3" strips at a time and you will stay in the 5-10 SW unit band. Once you get to the point where adding a 3" strip is too much take off the last 1 or 2 strips and see how you like it. If you still want more weight start adding it inside the butt cap with BluStik but again small amounts at a time. Each package of BluStik weighs about 28 g and there are 4 strips of BluStik in a pack so a half strip is 3.5 g. Add that inside the butt cap (at 10 cm below the axis) and your SW goes up 10*10*.0035 or 0.3 SW Units. That's nothing the only difference you will notice is the balance comes closer to your hand and there is a little more heft. Keep adding 3.5 g in the butt until your satisfied.
This way you have nothing to check except the feel of the racket every time you add weight and the most you will be spending is $10. If you don't like any of mods you will have saved a lot of time sending it to a 'professional' not to mention the money saved. If you find something you like and you still want it done professionally send your lighter racket to a professional and have all of them professionally matched to your one you modified.
EDIT: One of the posters in this thread (Geoff) does this professionally and I have seen posts on this forum where customers were happy with his work. Why not shoot him an email?