As it has got a little colder, I have started to fall out with my Nexx helmet. The seal of the visor isn't perfect and I started to feel cold air through the gap and increased wind noise. The closure of the visor has also become more difficult to use and I found myself thinking that I should dig out my last helmet and do a comparison.
So two days ago, I received a new visor in the post for my old HJC RPHA-90 and fitted it last night. I wore it for this morning's commute and it was a revelation. It was immediately apparent that it was more comfortable, a better fit, offered greater protection with the front flipped up and had way better all round visibility than the Nexx helmet I have worn for the best part of the past year. It was also noticeably quieter and lighter!!
So come back HJC, all is forgiven!! My Nexx is now consigned to the helmet graveyard in the basement and I will use the HJC through winter. I also plan to buy a replacement for use next Spring and I will go for the exact same model, albeit in carbon next time.
Hope this is useful to others - Nexx helmets are not bad, but the HJC RPHA range is way better!!