I'm using my Altergaze with a Oneplus One, which has a 5.5" screen.
When I first tried it (with lenses A and C), I got a double image no matter where I adjusted the phone distance to.
I switched to some longer screws, and my phone screen is currently about 40mm from the closest lens, and things are much better!
This is at the max length for the screws I'm using, so I might try even longer screws to see if it improves things more. But I thought I'd ask if anyone else has had this experience.