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 forgot to mention anothe one on the heavy side
The Ortonic AV-101 Black or Silver, they are often on ebay NOS 
I forgot to mention anothe one on the heavy side
The Orsonic AV-101 Black or Silver, they are often on ebay NOS
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 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.
It is. No cantilever. 

I went ahead and bought a Yamamoto that's 18.4 for a good price and the brass screws that soundsmith sells. I also saw a sme headshell spacer/weight on ebay that I ordered. Hopefully that'll get me heavy enough to use the extra SME counterweight. Highest mass possible is best for this cartridge.
I am using an Ortofon LH 9000 headshell with my Koetsu Urushi. The headshell weighs 18 g. But it costs a lot less than $300. To that you could always add more weight by various methods as you know. Your cartridge must be remarkably low in compliance.
No the quarters are on an sme headshell. The cartridge is a Decca London Super Gold. 
Certain FR headshells can exceed 20g easily. You’ve glued 3 quarters to a 20g Ikeda? What cartridge?
I know but not enough weight. I have 3 quarters sitting on the headshell now which is like 18g with the Blu Tak. I'd like a more permanent solution.