I purchased a Muhle R89 last year and really like it. The fit and finish are beautiful and it is a great shaver. I did however always think it was a little light for my tastes. I just tried something and it seemed to work really well.
I drilled out the threaded end of the handle to allow access to the hollow inside. I then filled it with #9 lead shot. Wow, what a difference. Gives it a nice heavy solid feel.
I can't wait to try it out tomorrow morning.
No pictures to post because the mod is not all that exciting visually but if anyone has any questions let me know.