Conversion of Mid Sur Belly Putter to counterbalanced?

I have one that I picked up played a few years until I got a new Scotty for Christmas. Mine has the original shaft still in it cut down to 34 inch with a super stroke grip with a 50g counter weight. I liked it was able to putt well with it and would likely still be using it had my wife not bought me the new one. Matter of fact I still give it a run at the club from time to time. its heavy but I like a heavier putter. My Buddy liked it so much he bought a used one from e-bay and cut it down to match mine he's been gaming it for 4 years now and does really well with it.