I have the IS-16 as well. I really like it, other than a few minor details. The padding seems to come un-snapped too easily, and it moves around a bit. This is not an issue with the helmet on my head. Also, the cheek pads hit the bottoms of my ears just enough to be annoying. I may see if I can modify that somehow. Just a couple other quirks that aren't much of a bother: The integrated sunshield is not anti-fog coated. Also, many times when I quickly reach up to hit the button to retract the integrated sunshield, the button rocks a bit sideways and will "stick" in the depressed position. A quick tap will dislodge it and all is well again. With all those little issues aside, I really like the helmet. It's comfy (minus the slight ear contact mentioned above) and quiet, compared to the inexpensive Zox that it replaced. The integrated sunshield is awesome as well! I got caught out at dark once with the tinted shield on my old bucket and decided I didn't like that, nor did I like shoving my sunglasses into the opening, alomst breaking them. I tried on several other helmets that were in the same price range, but none of them fit as well, and I had a hard time even putting on the Scorpion that would fit. I think I've found out that it IS true that some helmets fit different shaped heads better than others! Enjoy your new helmet, and ALWAYS use it!