I come at this from a different angle ... taking the exam for this year admissions ... already have a iist of admits, waiting for the final list, and as I narrow it down, I send out my withdraw notices to the rest of the list. I am out of the loop on the discussions of testing now for next year, especially as a 2nd time around. That does however fit the general advice on TLS, if you didn't do great, retake and wait it out a cycle.
Pick any school, UT, or otherwise, and it would be an interesting coincidence to have random people in this thread all who obtained admits and retesting for more money. There aren't a huge number of people chatting / waiting. It surprised me to see people on TLS posting over a year or more in advance of school. Especially when in person on exam day I encounter KJD who didn't even know about TLS or any other the other very informative and reality negative/cautionary in their view of law school and the job market for graduates