Interesting. I did not notice those marks before, although I still am not sure whether or not they would change the grade drastically. I don't really see anything on your blast white coin that keeps it down at a 66 (not that that's a low grade or anything). Both are really great coins. Now, your "mostly toned almost complete set": Is that a commemorative half dollar set?
Yes, it is. I'm slowly working on replacing the ones I don't like or don't fit. As well as saving up for the 3 I'm missing. I'm also swapping out ANACS/ICG slabbed ones to NGC/PCGS as I have registry sets over there. Just recently broke into the top 100 (#99) on NGC (50 pc set). Here's the set - The coin images are actual size on the full size version, and I also did one of the reverse, and one that alternates obverses and reverses.