I was wondering if anyone out there has changed to a single bore master? i have c 5 corvette front brakes and a baer ironbody set up in the rear.i also tied a new wilwood adjustable prop valve. i cant seem to get enough pressure to the rear.damn things wont even stop the rears will the car is in drive and idleing.i have a disc brake stock master in it now. Would a single step master be better for me?