The best helmet I ever put on my head is the HJC RPHA10. It also happens to be affordable. ( Unlike those helmets with the word: ARAI on them. )
I have never paid more than $200 for a helmet. I picked my 707 specifically cause it had an inner visor, had cut outs in the padding that allowed for glasses/sunglasses to also work with the helmet, and was still affordable. I have nothing against Arai, I just found everything I want in a helmet with the 707. Anyways, this is a pretty good video as well. 5:50 gets interesting (Nakano part):The best helmet I ever put on my head is the HJC RPHA10. It also happens to be affordable. ( Unlike those helmets with the word: ARAI on them. )
Try a 707 Vendetta 2 or 3 next time. I have found with flip down visors, its not the visor and glasses clearing each other that pose a problem, its the fact that there are no cut outs in the helmet for the glasses temples, which would otherwise make wearing glasses uncomfortable.I have the Shoei RF-1200 and just upgraded to the Transitions automatic darkening shield. It works great and I highly recommend it. I wear eyeglasses so any helmet with a flip down visor would likely not work out well.