Staffy
It's not yours 'til you cut it up.
I don't worry too much about periferal vision as I'm always turning my head. Just saying. And fit is most important. I can only fit my wierd head into a Shark helmet or the Arai profile. I went for the shark as it was half the price. Ultimately you don't eat soup with a fork, you need the right tool for the job or else you'll end up with headaches.