Ive just upgraded from an AP organic to an AP paddle 6 with heavy duty cover as the organic clutch was slipping with my spec,T35.55 turbo, 55LB injectors etc should be over 350 bhp peaking at 32 psi on Motorsport Development chip.
Yes the paddle clutch is on/off to use when pulling off but you get use to it. I cant say how heavy the pedal is as ive had a hydraulic clutch conversion fitted at the same time which makes my clutch lighter than my 1.6 Astra which i use daily.