Mods to metal up an XTC ?

[buriedorburned]

I have a stock XTC module that has enough gain for metal, but I'd like to know some easy mods that with tighten it up the low end and mids.

 

[tschrama]

Replace C3 with 2.2nF.. and a common mod is placing 220nF-2.7k parrallel with the 10K Rcath..

Lately I am having lots of fun with Diezeling-up my modules...39k-10nF across the 100K Rcath. try it!