Nope. You are wrong. Come on then Mr 33 posts. School me with a diagram.
OK, let's look at a flat Earth first. The road is at 127° azimuth. So on a flat Earth, I should be able to put the two sundials parallel to the road at the same distance to the road, and when the shadow goes exactly down the middle of the base of one (for example on 1st May, 2018 at 10:30am), it should go down the middle of the base of the other. And at that time, we should be able to get the length of the shadows and thus the elevation.
If the shadow doesn't go down the middle of the base of the second sundial, then FE theory must have some explanation for light bending horizontally. In other words, it must explain why if I'm looking directly at the sun at that time, the atmosphere to the left of the sun has a higher refractive index than the atmosphere to the right of the sun (if bending to the South in my diagram). Assuming this is observed consistently day after day in all seasons and weather conditions, this would be very problematic.
What do you think will be observed and if the shadow doesn't go down the middle of the base of the second sundial, what is your explanation?
Edit: Ha! I just realised I made a mistake and drew the experiment the way it would be at a location where I am in the Southern Hemisphere. You'll have to spin the sundials 180° for a Northern Hemisphere experiment. Same logic applies on a flat Earth though for the shadows on the sundials lining up.