Good luck on your test ride! Remember this: (I own an NC700X and I once had a 2007 Ninja 250), the NC700 makes its power at much lower RPM than the 250. You’re going to need to shift up at half the RPM as the Ninja. If you try to ride the NC like the 250, it will just hit the rev limiter at around 6500 and the engine will cut out abruptly. Try to ride the NC by shifting well below the redline and use the low end power. That’s what makes it so easy and pleasant to ride.
Once it’s at 6000 RPM, the power output falls off. There’s nothing to be gained by trying to rev it any higher. I can poke along all day in my rural neighborhood and rarely go above 3000 RPM, but then I’m not fighting traffic and city congestion.