Ok I figured out my deal with the 3.0 binds wasn't actually the 3.0 binds.
The setting to execute the Powexec_unqueue was turned off, and this is why it was turning super speed on while running but then turning sprint on when you release the button. (Kind of like how fly/hover works when in fly mode.)
Although this doesn't explain the crash, which hasn't happened since I loaded the 3.0 binds the first time. I'm guessing isn't the actual bind file thats causing the problem.