Nice job old man!! I have never played with such a HL frame and I am wondering how would that feel!!
One thing that I was not so sure about was where you placed your weight! It looks like you taped the lead to the soft insert and it is not really attached to the frame of the racquet. Should you worry that there might be some unwanted oscillations between that weight and the frame?
To me it looks better to have extra weight as solidly as possible attached to the frame to avoid any oscillations. But, who knows, maybe things are actually better that way!!
Still, very nice explanation about your work!!