mdxix, I'm closing in!
I have text edited each of the 12 TA folders and saved them to "My Collection" as "TA Stripped". I went through J0CE90, beat it into conformity, and then exported it as "Mod J0CE90 1.GPX". When I open this file in BaseCamp, it displays the route correctly, but...
...there is a nasty little issue that I will have to work around, apparently, and it is this: when I transfer the "Mod" file into the GPSR and run it in demo mode, it shows the straight-line, point-to-point route correctly. When I recalculate the route and run the GPSR in simulation mode, it becomes confused at an interchange along the route and truncates the route. My friends at Garmin support have assured me that, when on the road, this will not be an issue, and that if I am aware of these locations which confuse the GPSR and ride past them, the GPSR should then recalculate the original route and keep me on my intended path. This obviates the question "how do you know when the GPSR is giving you faulty instructions unless you run a simulation of each and every route and compare it to the route you have molded in BaseCamp?". The answer to this is, "I don't". I will just have to wing it, I suppose. The GPSR and BaseCamp calculate routes differently, it seems, and there is no way to know what the GPSR will do with a route no matter how I modify it before making the transfer. How I use the "Routing" options under the "Setup" menu in the GPSR (e.g. On Road/Off Road, Car/Motorcycle/Bicycle, etc.) might make a difference, but I have been unable to learn the definitive, correct setting for these options.
A couple of (hopefully) simple questions, if I may:
1. What is the best, most simple way for me to save these modified routes to my Mac and then BaseCamp for transfer to the GPSR? I am betraying my ignorance of all things computer/technological here, as I am not very good at manipulating file data into a Greg-friendly format. Would it be best just to open each modded route file in BaseCamp, save it to a new list, and transfer that one, big list?
2. Once the route data has been massaged and loaded, how do I get the waypoint data (Point(s) of Interest only, with no routing data), loaded into the GPSR so that I can find campgrounds, etc.? Will this be a process which parallels the route modification process?
I so appreciate all of the instruction that you have been able to provide. It is invaluable and has helped me immensely. Thank you very, very much.