I tried the FX18 a while back (at a Parts Showcase) and it had a greatly improved fit. I compared it to the FX37 directly, and did not notice the forehead pressure that (37) had. The AFX rep was emphatic that this issue was going to be cured on the FX-39, and that it woudl fit similar to the FX18 I tried. I feel he was accurate and sincere.
Everything I have heard indicates that the FX-39 will be a better fitting helmet. I do not feel you will have issues with it.
Not to be repetitive but Im just trying to get a good handle on the fit of the FX-18 or the 39. The prices are super great and Joe's policy sounds great too. Im just not one for wanting to return stuff like this. I like trying my gear on to be sure.
When you're lost in the wild and scared as a child. And death looks you bang in the eye, and your sore as a boil, its according to Hoyle to cock your revolver... and die. But the code of a man says "fight all you can" and self-dissolution is barred. In hunger and woe, its easy to blow... Its the hell-served-for-breakfast thats hard........Robert Service