Not wishing to trawl through all the 89 recent posts on this subject could I ask a question I asked once before.
Is there a Sat Nav available that allows one to examine the suggested route, and modify it if necessary, ON A COMPUTER SCREEN, and then upload it to the machine ?
Yes I know they mostly will allow this on their own screens but their screens are generally too small and the resolution too poor for them to be of any use.
Paul Mc Cann