Thanks! So I adjusted the sitter. I then re-fired using the same above schedule. After having the kiln in HIGH for one hour, the sitter tripped. The cone in the sitter seems to have bent all the way, but my witness cone barely bent.
When I adjusted the sitter, I did so that the claw is about a millimeter over the tongue. Should I make it more? I did use a firing gauge to hold the rod.
Thanks in advance!
Sylla