I used to use drivers with weighted heads. one head was a pound and when I put it on the scale, the club and to portion of the scale would fall off the end of the scale.
accuracy was good with it, but I would only drive the ball about as far as my 7 iron. It was a good warmup club though.
I made lighter versions that did get more distance but not quite as accurate. I think I had a 1/2 pounder that was in the high Fs I think. I sometimes will overload my front side and produce an astounding duck hook.
My current driver has a 210g head and it swingwieights at a D8.