prostreet brake drum dilema update.........

[QKENUF4U]

ok after seeing that the 70 1/2 ton trucks have SMOOTH BRAKE DRUMS i bought a set today (was able to measure them to make sure they will fit inside my rims THEY DO PERFECTLY !!! ) but now ive run into another snag, they are 6 bolt which isnt the problem, i can redrill them without a problem.
the problem is the center hole is bigger on the 6-bolt drum than it is on my 5-bolt drum (where it sits on the center of the axle to center it up)
would it hurt anything to just let the studs be the centering devices for the drum ?
i know they will prob. round out a bit but would it be that quick or would it take a long time ?? (the truck gets driven very little, other than when it rains)
man im so close. i could be driving my pro-street truck this weekend if this will work.