[trularin]

This is a matter of volumes.

If you have a 3/4" master and a 7/8" slave, you will have to move the master further than the slave will travel.

The 3/4" master gives you a big advantage for leverage in that you will output more force on the 7/8" slave for every pound you put into the 3/4" master.

Is the pedal easy to push?? Can you live with an increase in pedal pressure? If yes, than move to a 7/8" master or reduce the size of the slave to 3/4" That will give you a 1 to 1 pedal ratio.

Hope this helps.