And if instead of having your settings persist you instead want to set what the defaults are, you can modify some of the other settings under the [Mesh Export] section, there are a bunch of ones that are empty but if you set them that will set the default, look for the ones like:

Angle=
DivideLargerThan=
DivideLargerThanApplyTo=
AvoidSmallerThan=
AspectRatioLimit=


If you add a value to the right of the = sign on any of those that should set the default.

- Michael