The first is an Powerangle 115, The task was to increase the swing weight to around 333 kg from 318 kg,
This was to improve the "plough through" when playing with heavier tennis balls.
I added the required weight to the head / throat area of the racket, gave the racket back to the owner and he was very impressed with the difference. Serves / drives are now going deeper and the volleys are still crisp.
The second racket was a Powerangle 102 same task to increase the swing weight from 314 kg to around 333 kg.
The weight was added to the head and throat area again, same result serves / drives deeper and still able to manage the racket on the volleys.
So remember if you like your frame but you want something extra, like making it more stable on miss hits, or just to change the balance you don't have to go out and buy a new racket.
Custom it !
If it's good enough for the Pro's to get their rackets matched and customised, Then it's good enough for you.