We chose a ROCNA as our main anchor for several reasons. The first being the simple fact that the new generation "spade" anchors attain superior performance across a variety of bottom types than their predecessor "plow" type anchor. They dig in and hold strong. We sleep much better at night knowing our boat is securely attached to the ground wherever we drop the hook. The second reason we chose a ROCNA is because of its design simplicity. It's built like a tank and just works.