I use modular helmets most of the time.
Scorpion 900 did not hold up too well. Quality wise not the best and shell is massive for some reason.
GF had shark Evoline 2, that flip over system is annoying. For one you must remember to move shield up
before you close it otherwise chin bar scrapes over it. Closing and opening it is fiddly at best.
Can not recommend those at all.
Last year I used Nolan N-103. Not bad helmet but I had some problems with fit.
I got it sorted out but than I crashed and busted the helmet.
It worked perfectly. I got good smack on the head and I did not even get headache.
If it fits you it is good helmet but I did not buy it again.
Schubert was next plan but they are pricey....
While I was contemplating something else came along.
Lazer Monaco Carbon...
Sold by Revzilla in North America.
http://www.revzilla.com/motorcycle/lazer-monaco-carbon-helmet
530$ for mostly carbon fiber modular with photocromic shield and pinlock.
Detailed review here
http://www.webbikeworld.com/r2/motorcycle-helmet/lazer-monaco/
There is non carbon version still with photochromatic shield for 350$
http://www.revzilla.com/motorcycle/lazer-monaco-helmet
This is amazing deal.
My carbon version is extremely light, visor works well and does not need internal one.
Ventilation is really good, you can feel air flow over the top of the head.
They supply additional plugs for top vents to seal helmet in heavy rain.
I used it in light rain and it did not leak so I am not sure how necessary those are.
Helmet comes pre wired for their comm system but it is easy to remove the wires.
I installed Scala G9 on and it was simple install.
Beware Schubert style slide for internal visor that can be blocked by comm devices.
I ordered helmet without trying it on and it worked out for me.
If anything order size up from their sizing charts. I did that and it is good fit.
I think they have good return policy.
It might not be as good as Schubert but it is much lighter, has some amazing features
and it works great....
Cheers!