Hi Marekk,
So as the other user said, the only issue is the meter flickers, and the frames and size info are cut off at the border with the frame. Otherwise it's awesome, I like very much the lv_af on/off, it's good, nice touch. I recorded at my usual 1600 @ 2.35:1 @ 11.986 and ran the result through rawmagic 0.7b and looks good, really good. especially with lv_af on, as you know. also, i will test with my monitor and see what happens, because I checked with my friends 5dmk2 and used the monitor with this function and force VGA and it worked, i had acurate preview on the monitor and no corruption so i'll see what is results. Otherwise, this is fantastic, makes framing very nice and it looks nice when you shoot to have all black around the frame. Maybe it's also good for battery life?
Any way. Thank you.