what gear were you drifting in? the more wheel speed the more you get the smoke. if you are going 40 and the tires are going 65 thats smoke, if youi are going 40 and the tires are squealing at 45, you wont be doing much wheel spinning but you will be sliding.
if you are sliding cuz the tires are low grip you wont get much smoke, but its good to learn on those. basically smoke means ur eating the tire up, which is cool for pics but kidna crappy for track time, since ur changin tires so often takes up the time on track.
use a size smaller tire in the rear to lower the grip so u can over power them more, it should help you smoke them as long as the tires are 'ok'. what did u run front/rear at osw?