Here u go Si Hui! this is the centre stage vid i asked u you to watch =P
hehe..this article is for those who have been taking RAD technique that prefers that feet should stay in contact with the floor when you do glissades. tt's technically right, and good for whatever RAD's syllabus has intended. but different schools have different schools of thought right?
From my point of view, basic glissades for beginners should be in contact with or at least only slightly off the floor. after the beginner's stage of correct placement and technique, we move on to inserting glissades into quick allegro steps. and that's where we emphasize on keeping in time with the fast music, and artistically speaking, having BOTH FEET OFF THE FLOOR for a "hangtime" effect. if you're still faithful to what's been drilled into you billions of times since you were young, by all means stick to it...thats IF you can keep up with Joni's allegro =P