I’m not sure when the last time you road was but the track has started to get rough in certain areas. Notably the bottom of the 3rd drop after the loop and the turns over by Emotional Whirlwjnd. I’ve ridden velocicoaster at UOR a bunch of times over the past 5 months and for the intensity of that coaster it’s significantly smoother than incredicoaster.
Well, Velicicoaster is new. In 20 years, it will be rough too.
I have to say, we ride Incredicoaster a lot. My youngest son recently tried it for the first time and loved it so much that it is now his favorite ride. I've been on it at least 10 times this year.
The first time we rode with him, we sat in the front seat and it had JUST finished raining. It was a cool morning. That ride was smooth as butter. We immediately rode again and sat in the middle. Same train. Still super smooth.
After awhile, he decided he wanted to try the back row (his favorite on Big Thunder). He loved that the most! The back car is noticeably more rough than the front, but not nearly anything I'd call problematic. My husband with cervical spine issues has no problem on it. He cannot ride Space Mtn, Matterhorn or Goofys anymore. He can still do Big Thunder.
Two weeks ago, we rode Incredicoaster after breakfast and for the first time, my son commented that it was "shaky." He made 2 fists and shook them and said "like this." He is autistic with very high sensitivity to sensory experiences. He is also very detail oriented and noticed that it is only certian TRAINS that feel shaky. I don't remember what he said, but it was something like "trains 1 and 4 are smooth. 6 and 7 are shaky." I'll have to ask him again. He always pays attention to the train number when it pulls into the station and notices the subtle differences between them.
So, I'd say the ride's perceived roughness varies depending on the time of day, the weather, and the train.