You're absolutely right. IHT makes the system for both the Akuma, the AFX and the Shoei...if I remember correctly. The AFX is garbage...you get what you pay for. The Akuma is well made...it just doesn't fit my head type. It could be because of the pads more so than the shell, but when I put it on my chin is sticking too far under the bottom of the lid. It was pretty good at not fogging to.
My Shoei RF1000 is the best fit and best helmet I have ever owned. The Scorpion EXO 1000 was heavy..and the flip down visor didn't come down far enough...and it wasn't really dark enough.
My advice...if you ride a lot, spend the extra $$ to get one that fits, breathes well, is light and doesn't fog (if possible). An HJC can get the job done, just like an Arai can, but there IS a difference between the two. You may not even notice if you don't use it frequently...but I can sure tell.
Good luck.