Yup this is the way to get you 1:1 so PHAT is all correctly scaled.
@ its not actually 1:1 when you start separating the different types of assets. You have to have Blender in CMs / Blender Unit and I find if you do the scale on export things go horribly wrong.
This is meant as a method that works now but also as a start of me hopefully contributing more to BF about issues to get them to work 1:1 with all asset types.