Wilwood d52 and d154 manual brakes with what size bore master cylinder

[88Stanger]

So I have been working on my 1969 c10. I have wilwood D52 and D154 both dual picton disc brakes. Then in have a wilwood 1" bore master cylinder and wilwood adjustable prop valve with stock brake pedal and a 6:1 brake ratio all running the manual disc brakes. My question is do I stay with the 1" bore master or trade out for a .875 wilwood tandom master cylinder for better brake stopping due to higher pressure?
Thanks for your time.