Yea, that ratio would probably be helpful. I had to adjust it several times, but I was trying to get it back to 'stock'.
AND, the same diameter makes sense to me, but I had some 'guru' tell me it would make the pedal hard.
I said, Well, it's the same size as manual, and WITH a Power Brake Booster, how could it be 'harder' than manual.
Well after a lengthy disdaining, (he was an older gentleman) I went with the 1 1/8.