i got my nerve up and tried it, i did it with it spooled up sitting on the ground, i saw the heli boucne a little but that was it, pretty cool seem to run my battery down a little bit faster though
Cool! Just remember to always have the TX in normal mode and throttle sitck all the way down before you plug in the battery. But yup, the battery will run down faster because the motor will be running at a higher rpm in idle up.
Be careful though.. if you make the transition from idle up back to normal mode with the stock tx while the heli is on the ground the heli "could" jump up in the air a bit during the transition back to normal mode because of the stored energy in the blades/head.