Omitting bark from gritty mix
I'm sure this has been asked previously, but I'm wondering about the merits of omitting bark fines from the gritty mix and using a 1:1 mix of granite and Turface. Al, I've read posts where you have said the PBFs are an economical way to "extend" the mix. I understand that, but it's the one thing that's really inconvenient for me to get "right" - especially this time of year when I can't chip/shred bagged PB mulch. My application is specific to succulents, but I'm interested in using it on other, non-succulent, plants as well.