What are your current shoes, and have you had any aches & pains with them?
I guess if you don't need support then the firmer medial post in a mild support shoe could feel uncomfortable under you arch, leading possibly to ankle or knee discomfort.
I was told I was neutral when I had a gait analysis but have always run in shoes with some support (previously Asics 2000 series, but now Saucony Mirage) as I didn't have any problems when running in them.