just to extend this mother of a thread - the Leatt brace has now achieved SFI 38.1 certification - quite a different device from the others - no tethers to restain side-to-side motion, and provides some lateral support as well.
cheers,
bruce

http://www.sfifoundation.com/manuf.html#38.1

http://www.leatt-brace.com/ the Moto-R is the car version.




Ignorant Noob here:

I was considering an isaac device, due to being brand new and having budget issues. do you guys, in your opinion think that the isaac device will be illegal, and not allowed to use in the near future?

also, doesnt drilling holes in the shell of the helmet for the mount "decertify" it?
[/b]
regarding drilling holes decertifying the helmet - I was told that the Snell certification applies to the area above a certain line on the helmet. The anchors are attached below this line so don't affect the certification.
cheers,
bruce