Hi,
At work I have to calibrate a device that requires its Program ROM to be removed and a calibration ROM fitted, just to cal the device.
The Cal ROM is plugged and unplugged about 100 times a year, so to protect its bendable/breakable leads we have it fitted into a machined DIP socket and we then plug the machined socket into the ROM socket.
Unfortunately we cannot do it to the Program ROM due to PCB clearance problems so the Program ROM is removed and fitted with the appropriate tools
So if you do not have ICSP provision on your custom PCB and need to swap out your 328 to a UNO PCB to program it , fit it with a machined DIP socket to protect its bendable pins.
Tom... 