I haven't received mine yet.
Did the #7 work for you to get good focus?
If so was it with or without also using reading glasses?
I plan to make tabs, sorta like the Frensel lens mod video I posted shows for using the larger Fresnel lens, using hot glue ... so it can moved back and forth.
I 'think' the discussion is OK here because it ties into the HDMI output of 'some' tablets, and how that option can be used for FPV ... 'if' the tablet has that option, and having that option avoids needing to buy the DJI HDMI back for the controller, to accomplish this version of FPV.
But .... if somebody asks us to move, then I have absolutely no problem going to FPV or PM.