Yeah but that's literally a 1/2" swing in master cylinder bore. A 1/16" change is significant. That swing is more than 3x the difference between 7/8" and 1-1/32".
Within a realistic range it's a personal preference. Obviously it depends on the system- caliper bore diameter, pedal ratio, all that stuff. But if we're talking about an A-body pedal ratio and reasonable brake options neither of those choices is even close to something I'd recommend.
