I have the Bolle x-9 OTG with vermillion photochromic lens and it works pretty well. But, I have determined, after taking a couple of spills, that it totally sucks in flat light. As long as there is some bright light it's fine. They have two photochromic lenses but other than color there is little difference in transmittance, 65% vs 66% at the high end. I tried to order the lemon lens which is 76% but they were out of stock, so I've ordered a Smith Prophesy with blue sensor mirror lens for flat light, but will still use the Bolle for bright light.
You might find this useful, http://www.bolle.com/technology/goggle/lens-colors