I'm not sure that they do a full dark visor (and defo not a darker sun visor) for the IS fazersharp. I will check this for you on Monday. Yes, the sun visor is not as dark as a full tint, but better than nowt. The drop down on the new ST seems even less tinted. I used to use full dark tint visors on previous helmets (Shoei, Arai, Lazer) - looks like I'm going back to that.
It has just occurred to me that I have never used the IS without the breath guard - could be aggravating the air-jet problem. I'll try it without tomorrow and get back to you on this.
Good one Mick. Also, where the helmet sits on top of the crown of your head, the EPS can eventually start to compress a little so I am told, which may weaken the protection further eventually. But there is, as far as I know, no absolute definitive guide to these things (note that Mick's quote says "five-year replacement is a judgement call stemming from prudent safety philosophy" Arai were recommending 5-year replacement 15 or 20 years ago. Others recommended 3 year replacement. As long as it doesn't get silly abuse, I reckon you're alright at about 5 years with any helmet, and it will probably still give good protection beyond that.
Had a bit of fun with an old Box helmet on Friday. We removed the EPS, which was just a tight fit inside the outer shell (probably fibreglass) and not sticky-taped in as are some. "Will it break if you smash it on the floor?" was the question. First I did it on the chinbar, hard as I could. (Foc me, but it bounced well!
). Just marked paint was the result. So tried it on the very top of the crown. Same thing - bounced up about 6 feet, and only a mark in the paint. And that's just a cheapo Box lid. Course, if the EPS had been in it, that may well have cracked. See what we do in the interests of scientific crash testing for you guys?