Both at 1000 grit (dull) Terror pin down, mass bias below and to right of thumb balance hole p4. Reax pin up slightly and to right of ring finger, GC at mid line, MB to right of thumb. Heavy oil house shot... The terror was stronger, the week before the Nightmare was stronger. I got the reax to be my strongest ball and so far its my strongest on a lighter volume. At 1000 with a little polish...the ball was horrible...Off came the polish and back to 1000... Maybe I have to go back to 500 then 1500?