I went to the local here in Perth and tried on some helmets cos all I have atm is an el cheapo RXT helmet which is complete trash really. I noticed one thing however. I couldn't tell the difference between arai and shoei? From what I have read here I was sort of expecting different internal shapes. With my RXT it is more shaped like a wedge with lots of room at the back but it mashes my cheeks in at the front, so basically it is just a wrong fit, but with all the higher end helmets they all felt the same? Do I just have the universal head shape? Also what is the difference between the iridium visors and tinted? Oh and I also realised there is a HUGE difference between the higher end helmets and the lower ones. The shoei and arai felt awesome were as my rxt feels like shit.