It is, except it requires work with downlines to keep the legs generating equal volumes of product sales. Legs don't have to run mathematically straight. It takes work to create a strong structure in these type of programs. You would receive a Re-entry Certificate if this is the first cycle through step 5. You would receive a re-entry certificate the first time you went through all four steps.
All levels participate in the probability of tapping the income stream.
Several different levels use the same amount to calculate the volume for payout. The law of probability says that a number of people won't match amounts and some won't qualify to receive compensation. Some companies in this industry set up certified pay out amounts relative to total sales volume of product. In other programs a fixed percentage of payout is applied. The company might have to pay out too much and actually go out of business.