Chris, if when you run your fingernail across the scuff, you can feel the grooves in the clear, then your chances of buffing this blemish out are not good. A good high speed buffer in the hands of an experienced detailer can do wonders, but if it's through the clear, then you won't be satisfied. A good paint shop that is reasonable with you can fix you right up fairly inexpensively.
Give Flash man a shot, I think it's great he will let you try the product
. I expect you will at least have to try a polish with some abrasives in it to see decent results, a chemical (non-abrasive) polish isn't going to cut it.
Good luck, I'm sure you will find a satisfactory solution once you get busy looking. Let us know how this comes out
...................Tom
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Cor·vette : [ kôr-vt ]n. 1. A fast, lightly armed warship, smaller than a destroyer, often armed for antisubmarine operations.