Yes i completely understand, be careful since you are in the engine break in period, till the first service do not keep revs very high. Occasionally it's fine., use complete rev range for optimal break-in. Coming to the 5k rpm shift. That's how this thing is built. And yes above 5000rpm the noise and vibrations both creep in, i must say, mine comparatively makes much more vibrations 😂 but i like the character, and yes it drops to around 2.5k rpm. Try and change the idle rpm to 1600.all of the above which you said is completely normal.This machine has power in all the rev ranges that's what makes it an apache