I've been watching the re-runs of DS9 recently and noticed that the Excelsior class ships have a band that runs along the warp nacelles that glows blue like all federation warp engines. This appears to be missing in the STO models so the Excelsior doesn't look quite right. Can you see about sorting this minor oversight please when you can thanks
It's not an oversight, the nacelles glow exactly like in the movies (Search for Spock, The Undiscovered Country, Generations). It was added later in DS9 and Voyager. And so they are adding those nacelles a tiny bit later.