Have you tried going to Pinlock directly? The anti-fog insert is available:
https://pinlock.com/shop/lenses/hjc/is-17/
Very good customer service. Iordered the photochromic overlay for my Bell and it arrived in three days.

Well, HJC never made them in the first place. I think they just stopped re-selling them.
They are still available through pinlock themselves:
https://pinlock.com/shop/lenses/hjc/is-17/

I just bought a Schuberth C4 Pro. I have a relatively small oval head and normally wear a medium in other brands. In the Schuberth line I am a large. I tried it on next to the Nanotech II. The nanotech was more round and left me feeling like around my ears the helmet wasn't touching my noggin. The C4 has a very plush interior. You still can get some road noise but only on a busy freeway do I feel the need to use plugs in it. I noticed there is very little wind noise but in the absence of that you can hear whats going on around you way better. A few times the sound of a truck next to me actually scared me where before in my Bilt helmet I wouldn't have heard it. Its a nice helmet for sure but its a chunk of change too. The SC1 is a little bit of a joke. They shouldn't have tried to rebrand the Sena it to their own. I think they lost some functionality when they did. It would be awesome if the noise canceling ran all the time instead of just when on the phone. It s little flaky for the price tag. But I have a very nice helmet that should last its time.

Just picked up a couple of Shoei RF-SR yesterday for the wife and I from Cycle Gear. I Initially went in to shop the remaining Shoei GT Air that hey had on clearance two weeks ago, but they were sold out. Only the GT Air2 was available but it was more than I wanted to spend because I was buying two of them. Mainly I was after better air flow than my current RF-1200. The sales guy talked me into the RF-SR saying it's not much different than the RF-1200 except for the fact that it is tailored for upright riding whereas the RF-1200 is more geared to heads down type riding, and the the FR-SR supposedly has better air flow for the cruiser/touring type. We are going to test them today on a ride to Galveston. I hope I didn't make a mistake.

Wifey and I both have the RF1200. I didn't take riding style into consideration when we bought. It seems to have enough airflow so far. What is your opinion on the RF-SR? We're near Austin, so same heat problem.

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Seems to be decent enough I suppose. We rode the bike to Galveston a few weeks ago, and to Hot Springs, AR over Labor Day weekend. Mid-upper 90's both trips so if there was better air flow it was hot air. I haven't tested the RF-SR back-to-back against the RF1200, but if there was a difference it wasn't noticeable to me. I will say that it does not fog up as easily as the R1200. We were caught in two heavy down-pours and two lighter showers on the way to Hot Springs, and didn't have any fogging problems, even with the shield down, so there might be a small benefit there with circulation. With the RF1200, I did have fogging problems in the couple of times I was caught in rain. Both BTW have the pinlock.

Like TimNL, I wear a solid safety yellow-green helmet. It is a cheap closeout modular, but is comfortable and locks up tight. I can put it on with my glasses on. It has a good flip down shade, which I never thought I'd use but use constantly. I'm willing to spend more on a better safer helmet, but for me, the color is the thing. Not many (if any) of the better manufacturers offer a modular in solid yellow-green. I've been told numerous times that I can be seen from a long way off and I see that as a major part of the protection a helmet offers. The big dealer here says helmet makers don't approve of painting their helmets or wrapping them, so for now I'll stick with my hi-viz beacon hat.

Hopefully hi-viz gear will become more acceptable in the near future and the idea of looking cool will include safety considerations. If you can make yourself more visible you may not ever need to test the crash protection of your new helmet. But any helmet, even a bicycle helmet, can save your life. I'm glad we're having this conversation. Best, DD

Studies show that a solid white helmet is the most visible. That's my experience also. Something about the big white golf ball floating around!

Problem with hi-viz helmets typically is the paint fades out before the helmet life is expired.

I've been wearing white helmets for many years. The color helps keep you cooler in hot sunny weather, as well.