Centurion’s LW is close to a Govt. profile as far as I can tell. IIRC, Monty referred to it as a “stretched govt. profile” in the old CA barrel thread. Noveske is it, if profile is a huge consideration. Can’t go wrong with either, IMHO. I have both.
While it’s not a pencil-weight, the CA barrel profile does thin down in front of the gas block seat. Per pictures of both the Noveske and CA barrels, they actually appear to have a very similar profile.
I went with the CA barrel due to the slight taper that Monty had mentioned was added into the bore. I looked into this practice and it seems to have a positive effect on both accuracy and velocity. Not sure if Noveske has a similar internal construction.