Have to warn that the Caberg V2 has problems with the venting and blows a jet of air directly at your eyes & brow.
Bought the lid in May and thru the summer this has been OK, except for drying the contact lenses too much sometimes.
I'm thinking I'm going to have to buy a better sealed lid for winter though, as that jet of air is getting pretty cold and will soon be giving me an ice cream headache across my brow.
Someone on here suggested it comes in from under the chin and a helmet skirt might stop it, but I haven't got round to buying one and trying it yet.
Its quite a noisy lid too, but I wear earplugs anyway.
The visor system is fantastic though, so I don't regret buying it for summer use, for the price its a great lid with fully removable linings. Unfortunately its the low winter sun when you really need the visor.
Shuberth S1? If you can spare the dough. Matthelooney will tell you what its like.
http://forums.sv650.org/viewtopic.php?t=42215