Please note, I have made further comment below, so please read that as well.
I am very disappointed with the quality of the image in the PIMAX 4k headset. I had previously used an Oculus Rift DK2 and despite the much lower resolution, the image was of significantly better quality. I am using an RX-480, a Sandybridge Xeon 2670, 32 gig of ram and an SSD, so the system is up to snuff.
I have tried adjusting the IPD from 52 mm to 74 mm, if the green cross is in focus I feel cross-eyed at my measured IPD there are two distinct green crosses. I have perfect vision, checked within the last two months and do not require any corrective lenses. Despite any changes I try, I cannot get the image to be sharp. Looking through the center of the lens, I can barely read the "close text" and any rendering at distance is blurred and illegible. Absolutely horrid. When closing one eye to eliminate dioptic effects, the result is the same. I don't believe for one second that this headset has been assembled correctly, or with quality parts(see below). After three days of fudging around I am sick of wasting my time and want to actually play the games that I bought the VR headset to make better.
What an utter disappointment.