Surprisingly even to me, I actually do understand that [not the diff in algorithms of course, just that ramloader is different to bootloader]. On the up side, it's unlikely Garmin will issue another fw version for 2xx/2x5/3x0/6x0/7xx etc in my opinion. Unless they want to make them fully unicode compatible so they can get rid of EU non-unicode map of course.

Thanks again to the Master, we apprentices learn gratefully at his knee ......