I can't go back & edit my post now, but I didn't elaborate exactly/properly on how I use the enlarged focus box. I don't even really look closely at it, set whatever focus peaking colour you desire, as long as you can see whatever focus peaking colour you have set showing in the focus box area, you're good to go. Frame your shot, as long as you see the peaking colour in the enlarged PIP box, press shutter, done. It makes it extraordinarily quick and easy to MF that way.