Heaviest Headshell?


I'm trying to find the heaviest headshell out there to use with my SME M2-12R. So far the winner is the $300 Ikeda Titanium which is 20g. Any suggestions?
dhcod
I remember the earlier Decca cartridges, the 4R and SC4E. They were big, heavy, and noncompliant. It is hard to imagine that those didn’t gouge the grooves, but they had a devoted following. I still own an SC4E, which I would not think of actually using.
There are better looking screws (compared to SS) available from ebay, this what i've been using with my Reed 3p to add a bit of mass. 

Here is another heavy headshell from AudioCraft which i am using with low compliance carts on my SONY PUA-7. In my arsenal this is the heaviest shell. 
I forgot to mention anothe one on the heavy side
The Orsonic AV-101 Black or Silver, they are often on ebay NOS