Mechanical Brakes with RCM Universal CD Mount?

[Jahay]

I am going to be purchasing this mount from the store for my savage CD conversion. But ireally want to keep my mech brakes as i prefer them and it keeps the strain on the ESC dowm...

i have only used mech brakes on my savage tranny... and i am a little unsure as to what Diff mounts are able to utilise mech brakes...

And if they are not able to utilise mech brakes are there any mods you think i can do in order to get it to work?

Anyone ever considered putting hydraulic disc brakes on a savage? is it possible?