No one has successfully bred and documented in captive tiger salamanders that were not neotonic. Neotonic individuals have been bred. I've heard that some labs may have force bred terrestrials through hormone injections. People are unsure of what triggers Tigers to mate in the wild...so success has not yet been acheived. I believe that some individuals have managed to get their males into breeding mode but the females haven't. That's just hearsay though.
If you're looking for info on successful captive breeding of tiger salamanders you aren't going to find any right now.
I am currently attempting to work with as many ambystomids as I can obtain in hopes to establish captive breeding. Feel free to contact me if you want to share information and/or ideas.
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Hope my opinions help,
Rob