I’ve decided to get away from Easton FMJ’s, which I’ve been shooting the last couple of years. I’ve found them to be too heavy and slow for 3D/fun shooting. So, I’m comparing two newer, lighter carbons; one from CX, one from Easton. Without regard to brand names, which of these specs would be better for target shooting, and why? Size: 250 (8.1gpi) Length: 31". Straightness factor: ±.0025". Weight tolerance: ±1.0 grain. Diameter: .295" Size: 400 (7.2 gpi). Straightness factor: ±.001". Weight tolerance: ±1 grain. Diameter: .234".