Hey guys, glad I stumbled into this forum!

Does anyone know if there is any difference between the normal M-Frame lenses and the 2.0 ones (i.e. the Military Issued ones)?

I know the middle top is different, there is a hole to clip the 2.0 version.

What I want to know is, is there any difference in curvature between the 2 lenses?
Also is the nose bridge shape exactly the same?

Are there lens hooks in the normal retail version of the M-Frame Lens that will fit the nose bridge well as if it were a M-Frame 2.0 Lens?

I ask because I want to get these prescription inserts for my M-Frame: http://www.esseyepro.com/U-Rx-Insert_191_detail.html

I might get these instead as well the Oakley Rx Carrier Kit: http://www.emperionstore.com/index.php?dispatch=products.view&product_id=32146

They say they fit the M-Frame 2.0 but do not mention the M-Frame.

I really want to get some inserts and have found no other options. I cannot Rx the glasses directly because my degree is too high.

All help is appreciated. Thanks!