Clutchless shifting unless downshifting has proved to be ok.. Ive done it and put almost 15000 miles on a bike doing so and have not had any issues.. But doing wheelies and shifting usually is not a good idea.. maybe get it up in 2nd and go to third but going through all of the gears is really pushing it. Get it up in 2nd and hold the balance point you should have no problem going as long as u want. Just cover that back break for safety all of the time.. it will save your ass..