Generally your thinking is fine. In this case I was not referring to the lands and grooves."Carbon barrels create a stiffer and more repeatable barrel signature through the firing process, carbon doesn't wear out like steel and with the right build process, will move heat away from the center of the barrel faster than a steel barrel of the same contour - less "barrel whip" over time - a sendero carbon barrel is going to be stiffer than a #4 steel barrel and have less barrel whip"
The only issue that I have with this is the comment "Carbon doesn't wear out like steel". In my way of thinking, since Carbon isn't coming in contact with the bullet, there is no "wearing out" process that we have to be concerned about. We still have to be concerned about carbon steel barrels "wearing out" because the steel liner is in contact with the bullet, just like in a steel/stainless steel barrel.
Or is my thinking flawed?
I really like Carbon Steel barrels for the light weight and stiffness that they have. I am not doing any long strings of shooting, I am either target shooting or hunting, with the emphasis on hunting.
By wearing out I mean - every time a piece of steel is flexed it loses repeatability and strength properties due to stress over time. The thinner the steel, the more it is prone to lose stiffness and signature through barrel whip. Carbon has significantly higher tolerance to this over time, so much so that it is not perceptible to anyone other than measuring machines. Also, carbon is a natural vibration dampener and as such, can help cut down on felt recoil and follow through vibration during the shot. Lastly, due to its stiffness over time, the point at which the bullet leaves the barrel during the whip signature will stay more constant and repeatable than steel