Fiddle-dee-two-three-four!

I am now on the fourth firing of the bowl I had so many problems cutting out. As I mentioned in my Fiddle-dee-dee post, I couldn't cut a 12" circle for the life of me! In trying to make lemonade out of lemons, I have cut, fused, cut, ground, fused, ground, etched, ground, fused....on and on and on... Once I decided to use this project as yet another learning experience, I designed a white coral design to fuse on the black base before slumping into my bowl mold. (I'm a sucker for anything to do with the beach!) In order to keep the crisp lines of the coral, I full fused the design face down to do a flip and fire. Since I am kilnwash challenged, I fired it on thinfire. So, now the question is: Is that why it turned out hazy and dull? And what can I do to salvage it? I don't have a sandblaster, so I coated it with etching cream to etch the surface and now I am waiting for kiln time to run it through one more time. At what point do I give up????? I sure hope the next time I mention this project, it is to declare success and post a picture!