ok, 1st I took to a machine shop.
and they where unusable.
And wasted alot of time and money, the pilots where not even close to centered over 1/4 inch off center wtf.

what?????
not understanting how you would think this is way out of balance, all holes are exact dimensions and sizes to there balanced counter part.
the recessed bolt holes are exact same depths.
this is for a rotational balance from exact center of each disc.