hey, i have a ff3 with a rebel xti on top, pc105 on the side, blow switch mounted inside the helmet, and i could not be happier! i film tandems, and teams with several hundred jumps on it and have nothing but good to say about this helmet! it fits NICE, and one good thing is the box will fit a lot of different cameras, not just the one. i ordered mine with the pc105, but i have also put a pc9, cx12, hc96, and a few others i cant remember the number of in there. i would say buy one!
chris