I bough a Bell MAG-9 about a year ago and wore it comfortably for about 8 months. Then the mechanism for the inner drop-down shield started to fail and eventually gave up. But I have to give props to the Bell support staff for painlessly honoring their 5-year warranty on this lid. I emailed them about the problem... they sent a return label. I shipped the helmet back with a copy of the receipt... and they returned a brand new one to me within about two weeks.
I like the styling of the MAG-9... it compliments the F6B. I think it's a comfortable helmet. And the way they integrated the mounting for a Sena 10S is pretty okay.
That's my
Ride safe!