I use them. You literally cannot see the insert which seems strange considering it's so close to your eye. But, you won't see the frame or rim of the insert at all. I haven't had fogging issues but there are are anti-fog products out there if you do. Changing how you dress or changing which head wear you pick could affect fogging, too. I think the X6 + prescription insert is a great combo. As your prescription changes, you won't have to buy new colored lens. I have no regrets buying this system.
have panther x6 plus with insert
Got the same problem with insert rubbing on eyelashes
I put a small strip of double sided Velcro, (Velcro cable tie), on the top of frame. This spaced it far enough away that lashes don’t rub. Plus it helped with fogging issues, cause can get some air between forehead and frames
If I had to do it again I’d get the post version, because then the insert has the nose piece and doesn’t sit so close to your face
I just purchased the Pillas with insert this year . In honesty I've not shot enough to give a good evaluation . But the little I did use them I got perspiration between the insert and the lens . Perhaps i should wear a sweat band , I'm not sure but I plan to find out this weekend . If anyone has a similar issue or better yet a solution ,please pm me so I can speak with you .