Both sides of the order book earn points, making it seem risky but actually quite safe. To ensure your order is never filled and stays in the range with the highest points, you can place a two-way order at the edge of Band B. If the price moves in your order's direction, immediately cancel the order. However, this is quite tedious to do manually. Ideally, you should write a monitoring script to send notifications when the price approaches your order, making things much easier.