First, let me ask you a question.
What do you think the weights will do? Make your legs stronger? Or help you rotate easier through flips?
Either way, it won't work quite like that haha. I would say that if you had any weight, you would want a weight vest, less stressful to the joints. But even then, the extra weight will only change your technique and your biomechanics will be thrown of completely once you have taken the weight off. If you use weight for anything, use it specifically for lifting, not technical training.