Thank you for the replies and thoughts. I agree real-time GPS trackers seem to be too hard on batteries and add ‘faff’ and complexity. Which is why I end up back at ‘home-base in the processing stage trying to insert GPS coordinates into the picture file. Which is where I get to with the question, whether it is possible and/or desirable to add GPS data to the RAW file, or should I just accept it is a post-processing thing and either add location in Apple Photos or with Graphic Converter just before uploading/ publishing it to Photos. (I tend to keep Photos free of RAW files and use it as a means of delivery/publishing rather than processing)
So again thanks, and I suspect it just clunky as a process.
John.