No worries, I’m glad to help

Yup I briefly considered doing this as it’s a pet peeve that I always forget to update the non-CPU lens in my D700 when I switch lenses
The EXIF gets messed up, bleah
I personally opine it’s okay if it’s permanent, should add to the resell value or peace of mind that the chip doesn’t fall off anywhere, even into the mirror box (if those are your concerns)
Anyway as part of my consideration, iirc, the 50 1.2 is one of the tougher ones to modify, requiring machining very close to the rear element to remove extra material, and also off the chip itself
There’s so little room or clearance to add the chip on
I backed out… wouldn’t want to perform a hack job