in my experience, ITS A NO NO.premature clutch damage ang makukuha mo. well, not unless kung tama palage ang paglabas mo, meaning at the right rpm mo siya ilalabas. :D
This kind of shifting is never recommended. In the long run, the teeth of the gears may get damaged, and if the worst comes, you'll find yourself in need of a new gearbox. Just my 2 cents