I was also very excited about this maneuver - it was extremely easy and soft, (almost "automatic")

The hard part was getting my left hand to stop fumbling with the clutch grip.
I agree, for those just learning this method, the hardest part is to get them to quit moving the Clutch lever. Find the Slippery Zone and hold it here, do NOT move the Clutch lever.
Control all forward movement with the Brake Pedal.....
the throttle should be held at the point where the engine is just wanting to pull you forward; at this point, do NOT move the throttle grip again.
the Brake Pedal is the only thing that you move, to control Slow Speed Maneuvers.
. an empty Parking Lot is the place to practice this......
when I was working with the Fire Department, all of our entrances were Gated, and they would not Open when you Exit until the Vehicle was over the Trip Wire buried in the Asphalt....
It took me a few times to get this method to work Just right, so that I could approach the gate, hold the bike in Slippery Mode, just barely crawling forward until the gate opened and I could pass through.
getting into the parking lot, was a lot harder, you had to hold your ID Badge over a Magnetic Sensor before the gate would open, and let you inside the property..... I never was able to get that to work, without stopping. ( slippery mode is damn hard to do, if you have to use your left hand to hold the badge over the sensor

)