Sent Routes to Nuvi 1490 LMT from Base Camp

Makes a change ... it's normally you correcting me :)

Everyone has an off day every now and then :p

Plus I don't own a 2508LMT-D.

All good responses. Putting a shaping point at an intersection won't help if you are not turning. Would be nice if the unit would announce (if it must say something) the cross road if I was just passing through, but that is way to much to ask for. I have minimized my shaping points, so I will just grin and bear it. BTW, the route is for US Route 66. This means I run parallel to interstates, but not on them for long distances. BC likes to route me back on interstate whenever possible.

Before purchasing another Garmin, I will try it first, to see what other "improvements" they may have made. Your feature list by model would be helpful. For now, I'll stick with what I have. nuvi 1490LMT + 16GB, nuvi 2555LMT + 16GB

Putting a shaping point at an intersection won't help if you are not turning.

True but perhaps I wasn't clear. I try and put them where I'll be "turning" anyway. That may be a T-junction, an interstate exit or whatever.

Obviously putting a via/shaping point on a continuous section of road will "shape the route" but is annoying/useless when announced. Now I'll put a via in such locations while creating the route (on a PC) but will go back and move (create/delete) the via at or near some turning point the causes the route to follow the path I want. Sometimes I have to try a number of locations before the route goes the way I want.

If only it worked that way. Try placing a route along the frontage road of your favorite interstate. Place the starting point at some point on the frontage road,and a second point a few exits down the road, at an intersection of the frontage road and another road. Basecamp will re-route you along the expressway. Doesn't matter if your profile is "fastest time" or "shortest distance". Doesn't have to be a frontage road. Can just be a parallel highway.
If you set up to "Avoid interstates", you will, in fact, be able route along an interstate and not have BaseCamp put you on the interstate. You can even attempt to do mixed routing, both on and off the interstate, but the results can get weird. BC will sometimes route you off - then back on the interstate, even if you intended to include a leg on the interstate.
And don't ever change the option to avoid or follow the interstate after the route is set. BC will re-route you again, with no notice.
For day to day driving, none of this matters. But if you are trying to follow a very specific route, such as Historic Route 66, shaping points are needed to force the correct routing. Maybe if we didn't have to choose between "fastest" and "shortest", life would be easier. As it is, BC has to be carefully guided to get the correct results.

As it is, BC has to be carefully guided to get the correct results.

I've been using Garmin devices and software (MapSource) for the last 13 years and this has always been the case if you're fussy about the routing. It is not a new issue and predates the existence of BaseCamp.

I've always been able to force a route (except where there's map errors) with a combination of routing settings, via's, and patience.

Consumer GPS units are just small computers. They're not intelligent and can't read the mind of humans. They follow an algorithm and routing data in whatever maps are in use. Sometimes the human just needs to engage their brain and ignore the GPS.