IIRC the "orders" always occur at the same RPM regardless of throttle opening or power level.
This means that (if you have the time) a light throttle test slowly running through your RPM range and feeling for "buzzy-ness" through the steering wheel, shifter, clutch pedal, etc. will tell you when an order is really close. Say it out loud so your riding mechanic/wife/fireman can record it. How try up-shifting and pass through the same range again - results should match. Now, try a coast-down through the range from high to low - results should match.
Operating at a particularly bad order (like 3rd) also raises the oil temperature a bit but it may take minutes to show up.
