Hello Mark54. Thank you for sharing such a detailed review of your mower experience. We are glad to hear you appreciate the single-lever height adjustment and the wide range of self-propulsion speeds. We understand your concerns about battery runtime and the difficulty maneuvering backward when the self-propel is disengaged. RWD mowers offer better traction, particularly on hills and uneven surfaces, as the rear wheels can grip the ground more effectively. They also tend to maintain traction better when the grass bag is full. However, RWD mowers may require a slight effort to turn, as the operator needs to release the self-propelled lever to pull the mower backwards while still holding onto the start lever or pivot on the rear wheels. We have a video that will show you how to operate your self-propelled mower. You can watch the video here (https://youtu.be/NUN1HvDgwrY). We hope you will find this information useful. If you require any additional support or have questions regarding a product, we recommend try our Q&A section on the product’s page or Chat with us direct on our website www.greenworkstools.com.