Smoothing problem following a curve

follow a curve problem.blend (631.3 KB)

why has the shape repeated along a curve behave oddly when i click smooth?

yes i am doing it roughly first to see if it would work
thanks

Did you check merge on the array modifier?

image

Sometimes you need to turn on auto-smooth, sometimes you need to turn it off.
Subdivided your top mesh simple w/ 1 sub…left the bottom alone…

thanks guys
dont see any of that on 2.69
and cycles is still a mystery to me!