the dull spot is normal but you're not finished yet (unless you've already burned past the clearcoat). I learned this lesson on my Goldwing, last summer.
I would not try this myself but I have a buddy who does such things. He rides an '82 katana 750 that looks like it just rolled out of the showroom btw.
One time, he ASSURED me that he would be able to safely bring to a high gloss, some dull spots on my Goldwing. As he wet-sanded (and I watched, shitting my pants) he explained that you need to liberally chew-up the clearcoat, being careful not to 'overshoot' and go right down to the actual paint underneath. When he finished, I did **** my pants, as there was a great big oval dull-spot. Then, he took-out a cloth & finishing compound (which is basically a liquid extremely fine grit abrasive) and when he was finished, it was the nicest spot on the bike.
So I'm hoping that's where you're at and you didn't go to town to the point where you've actually dulled-up the paint underneath.
As I said, after watching my buddy, I wouldn't recommend cutting your teeth on your main ride but the dull spot (in my case) just meant that the 'finishing' wasn't done yet.
Good luck. Post a pic!