I like the 800s. Just be careful when adding routes to NewFiles - if I do a 600k say, and it has 9 files, it will take 2-3 goes to actually get all the files to 'take' and appear in the Courses list.
I copy the batch, unplug and count through them, then plug it in again and copy the missing ones. Takes two or three goes with, say 9-10 files total. Annoying but not as annoying as getting to the 300k mark of a 600k audax and finding file #5 isn't on your device...
I like the 800s. Just be careful when adding routes to NewFiles - if I do a 600k say, and it has 9 files, it will take 2-3 goes to actually get all the files to 'take' and appear in the Courses list.