Someone posted a few weeks ago with a calculator that said their chances of success were 48%. The poster's OB didn't like to go for a VBAC for anything less than 50% odds.
This new review of 700k VBAC records totally debunks that.....
https://www.eurekalert.org/pub_releases/2011-07/w-ro7072711.php
One of the key findings......
"Scoring systems devised to predict VBAC success are largely unhelpful."
Re: VBAC success prediction calculators - Debunked