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Have you been out to the Lone Star Motorcycle Museum on 187 yet? It is a few miles North of Vanderpool before you cross the Sabinal River (if you are heading South). Lots of really cool bikes there! You can get gas/food in Vanderpool. There are some fun roads over to Lukenbach as well. Head East out of FM 1341 toward Comfort. Right after you cross under I-10, head North on Center Point Rd., also called Hasenwinkle Ranch Rd. Run that all the way up to Bear Creek and head Southeast to Hwy 87. Head South a short bit to Grapecreek Rd., and continue East to Old Fred/Old San Antonio Rd., and go North to Grapetown Rd. Head East into Lukenbach. If you don't mind water crossings, head South on Hwy 16 toward Bandera. About midway between Medina and Bandera, look for Kyle Ranch Rd., on the right. It cuts down South to FM 470 just East of Tarpley. In Tarpley, head South out of town a short way (not quite a mile) on FM 462. Veer right onto Ross Rd. You will come to a relatively wide but shallow crossing for Williams Creek. Stay on Ross Rd. It becomes CR 121 and continues South across Wards Creek. Head West on CR 211, also called Utopia Rd. You will eventually reach CR 111 and there may be a few creek crossings before you get there depending on how much rain there has been in the area. Head North on CR 111, also called Seco Valley Rd. You will reach Flatrock Crossing shortly after turning North. It is usually shallow, but can be SLICK! There are several more crossings as you head North to FM 470. Once back on 470, you can backtrack through Tarpley to Kerrville, or you can head West to 187 and run back up to 337 then 16 or up to 39 and come into Kerrville from the West. If you get up North of Fredericksburg on 16, you can do the Willow City Loop. If they are blooming, the Blue Bonnets are usually pretty incredible. If you go on a weekend, it will be JAM PACKED with long lines of cars and cruisers. Do it on a weekday if you can. When you come back out on 16, head North to CR 315. It will be on the right. Head East to CR 308 and hang a right down to CR 310. Continue East to CR 310a and go South to FM 3347. Head Southwest on 3347 and it becomes Althaus-Davis Rd. There is a small but SLICK water crossing on Althaus-Davis that can sneak up on you if you are hauling! It is in a corner and under the trees. It is only a few feet across, but it is slick concrete. You will come out on FM 1323, head over to FM 1631 and run it Southwest back into Fredericksburg. This whole loop is very scenic and should be loaded with wildflowers in the coming weeks. I wish I could come ride with you, but I've got way to much other stuff going on for the next month or two... 
I think if you leave the files as tracks (GPX) you won't have to worry about how many points are in them. The point limitation only applies to GDB files where you are trying to use the guidance/routing features of the GPS. Even on my Montana 600, that limitation is a pain. I build my routes in Basecamp. Once finalized, I convert them to tracks. Then I export the tracks to my GPS, NOT the route file! I then go to the track manager on the GPS, pick the one I want, set it to display on the map, set it to bright red so I can see it easily, and start riding. Note that none of the guidance/routing features work when you do it this way, but I don't care about any of that. I just want to see the line on the map and not have it move around because the GPS thinks I have missed a turn or need to go a different way. One benefit of doing this is that I see my intended route ALL THE TIME. If I need to, I can use the routing features of the GPS to figure out how far it might be from where I am to some other place and not have to worry about that messing up my track. It is always there even when the GPS over lays a calculated route.
