I take it the manufacturer didn't think there was a problem with yours?
I sent one of the barrels back for inspection, after having a gunsmith mount the barrel in his lathe to measure the differential in groove depths. Lathe operator determined three grooves cut identical depth, two grooves cut out of spec deeper. Two grooves extend into the throat, so cut deeper than the throat. Some pics in this Thread:
Looking for some feedback? Please take a look at these photos I took of the throat in a cut rifled barrel I just had chambered. The neck of the chamber is visible to the left, and the rifling visible at the right side in these two photos. So the pics are centered on the throat. The score...
www.longrangehunting.com
Consequence of inspection was it met their QC standards. I was told it's "literally... impossible" for their grooves to be cut to differing depths. So SOL. $880 dust collector.
On a more positive side, with both CFW barrels stored in my reloading room, I do notice the reloading room is a much cooler temperature. Amazing - the cooling properties of the carbon fiber wrap! Hahaha
Store enough CFW barrels in one room and no need for air conditioning!
My current feelings;
1) Every additional significant machining (removal of steel) on a barrel, whether fluting, or carbon wrapping, increases the odds of poorer precision... Another chance for negative impact on barrel precision, compared to a plain contoured steel barrel.
2) I can say with extreme confidence... a plain contoured SS barrel that doesn't shoot doesn't hurt as much as a CFW barrel that won't shoot. Hurts a little less than half as much. Very similar to the difference in cost between the two types of barrels.