Hi Kyle,
I've just tried as you suggest, but here is what's happening.
The false credential technique ( I tried all 3, but found the wrong sendpath to work) has managed to stop an email, but it's stopping the one generated by CB rather than from Joomla. As a result the temporary password is incorrect as the one generate by CB is the valid one.
While there are plans to move up to Joomla 3.x, I need go this route in the short term.
Any ideas?