“Bladed” referred to your possible body position behind the gun, as in your shoulders/hips would be at an angle in relation to the target. The opposite would be “squared” behind the gun, your shoulders/hips would be square to the target and perpendicular to the bore. A lot of guys nowadays are advocating a more squared up position, the argument being it allows for more consistent recoil management and also allows for spotting impacts on steel/dirt consistently at distance. That being said, as long as your position is consistent, the gun should behave consistently.
1:27 is an example of being squared up on the bench:
https://m.youtube.com/watch?v=V6wFL75lPSA
Regarding cheek weld, the scope may be too high, but that depends on the mount. The Nikon mount may be low enough where it’s not an issue. I have two scoped uppers, one with a ~1.4” and one with a ~1.5” high mount. The 1.4” doesn’t require a raised cheek piece, but the 1.5” does. On higher mount, without the cheek piece, I had a tendency to push shots left. It wasn’t until a friend had me “fall asleep” on the stock that I realized I was holding my head up slightly to maintain a sight picture. When my head fully rested on the stock, the cheek pressure pushed the muzzle left.
Anyways, just some things to check if you care to