Does a lot of lead tape damage the racket

Where did you distribute the lead tape? All on the top frame?

Let say its all on the top frame. It wont be damage ur racket, but its swing weight would be shift greatly which would affect ur playability very much. Not to mention ur racket stiffness would be less stiff due to extra head weight.

Well u had put it anyway, so just try it if you would like it.