Hmm, this is all so very confusing.
I very foolishly bought an AGV Stealth mail-order after my local shop did not have them in stock, and then found that the design had changed, and the new one was really painful to wear (the cut-outs round the ear are different from the one I tried), so I am back wearing my 10 year old AGV (no idea of the model) while I work out what else to buy. I really want something as quiet as possible, as the noise on the GS when cruising at high speed is a real problem for me, and had considered going for a Schuberth C3.
Unfortunately, it seems that too many people report bad build quality, and a significant number say that they have a major problem with noise on the flip-up models. I doubt that the shop will let me have one for an hour to ride in, so for the noise, all I have to go on are reviews, and they seem, at best, mixed.
I love the feel of my old AGV, and the only complaint is the noise level (well, that and the fact that at ten years old, and after a hard life, I am not so sure it is as protective as it once was), but this is complaint enough that it is time to try something different, and, unfortunately, I have not got a clue what will work.
With most of my equipment, the choice just seemed simple. Hein Gericke jacket and pants, Sidi Crossfire boots, R1200GS bike, but the helmet is stumping me, and I don't really want to spend the thick end of £400 and then decide that it is not doing the trick for me.
Hmmm...