[quote=Gearhead999s;12953007]Now on another Alcon site I find this
Monobloc 4 / 6 piston design for high stiffness (firm pedal) & low weight
Piston bore sizes are staggered to ensure even pad wear
Pin-mounted pads provide low threshold pressure and low noise
Maybe your calipers are not the proper ones or they were manufactured improperly?
This parts list clearly mentions that pistons are all the same size - says 6 x 34.9 at the front and 4 x 31.8 at the back: http://www.alconusa.com/client_images/files/92_1222.pdf
Part list for other kits do show stagger. So I guess it was meant that way.