e28S-240240/119.39.7
Great - did that and the measurements should be 9.7 for a e23T-240. My measurements were 11.3, 11.3, 10.85, and 10.85 (so I calculated a reduction of 11.6% and 11.2%. Assuming I should replace the elements?
I didn't see the max temp but I know that it got to at least 1600 before I went to bed. I have noticed my firings taking longer than usual so I'd guess that was the elements as well...