| Thanks for all your responses.
In the end I went for an Arai Astro Race.
The helmet fits like a glove and feels really comfortable.
After a week's riding though there are two problems I've noticed.
1. With the visor up at any speed above 40 mph there is a really nast wind whistle. I often ride in sunglasses with the visor up when around town and this noise is really annoying. This problem never happened on my old Signet GT.
2. The peripheral vision doesn't seem as good as the Signet GT. The check pads are a bit higher on the Astro and I seem to have to turn my head more to look into the blind spot over your shoulder.
Anyway, a couple of little niggles that I'm sure I'll get over. I have to, now that I've spent the money!
Phill | 
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