ATM Central Hill

["Myers, Alan" <AMyers@IKON.com>]

  I am having great difficulty with my first mirror. It is a Pyrex 8" f/6.7.
After completion of polishing, I had a TDE. After searching the archives, I
found a recommendation to use 1/3 or less COC strokes. This worked after
about two hours of work. But now I have this large central hill from the
center to approximately the 70% zone. The archives suggested a short W
stroke TOT. I have tried this for over 1.5 hours and can see no change at
all, except that of the edge trying slightly to turn. I also have tried
using the standard polishing stroke, but this is seemingly having no effect
either. I am frustrated and confused, please help. Thanks A lot.

amyers@ikon.com