Keep weight on the paddle float at all times. A common mistake is taking the weight off, causing you to roll over and capsize away from the support of the float.
You risk breaking your paddle if only the blade is on the back deck.
Keep the paddle float at a right angle to your kayak throughout the rescue for the best support.
Some kayaks have systems for securing the paddle at 90 degrees during the rescue. You may need to re-enter from the bow side of the paddle.