So, I am getting ready to install a scarebird disk brake swap w/ 11.75 cordoba rotors and chevy calipers.

I need to do something with the master cylinder, so I was thinking the lightweight aluminum master cylinder but from what I've read it's a manual swap only.

Currently I have power 11 inch drums. So, should I got for the manual brake swap? I really would like to drop a few pounds off, but my experiences with manual disk brakes have not been good.

would an adjustable prop valve and a smaller master cylinder help?