Back to your rotor question: swap is easy; unbolt old/bolt on new. Yeah, I hate Torx-head bolts. Hint: put a dot of fresh Loctite on each bolt before you button 'er up. Oh, and on many rotors, the veining is directional, so be sure you're putting them on right-side-out.
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Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."