I use a cylindrical/mini stick powder in Hodgdons/ADI's H4895/AR2206H in both my .308 and .222's
I find it difficult to throw consistent charges by volume in my 'ordinary' throwers.
Besides the inherent 'pick up sticks' consistency of the powder, the cutters sometimes have a difficulty.
I consequently weigh each charge, even if it's just for piece of mind.
I no longer shoot competition, but I do enjoy the satisfaction of shooting acceptable groups in my sporters.
I also weigh each charge of Lil'Gun for my .22Hornet, as the powder seems a bit different to a normal ball, and consistency is probably a bit more critical in these little cartridges.
I haven't checked one method against the other.
No need, shooting is just a hobby, as is the reloading side of it, which i enjoy, and I've plenty of time.
As others have pointed out, powder is just one potential variable in the big picture,
together with;
cartridge
primer
projectile and it's variances
neck tension
and probably a few more,
besides the rifle and the shooter
Let's face it, good results take a lot of effort by a lot of people along the way.
cheers,
SS