Chill out guys and be patient. All this talk of exploring rev limiting on ridiculously low mileage engines. This huge pot heat generator needs thousands of miles to bed in.
You may have heard of high mileage owners mentioning their engines continue to loosen up - mileage tuning?
Hitting the rev limiter can be dangerous if it happens in the middle of an overtaking manoeuvre (don't ask how I know

). As mentioned before torque and power are dropping off when that happens anyway. Keep a closer eye on tacho and change up accordingly.