Nothing will bring new pilots into pattern more that old fashioned being nice. Forget all the gizmos and be a good ambassador to the hobby. Make them feel welcome, and help them get started. I know when we head to the field we are concentrating on getting in some quality practice time, but find some time to answer questions and maybe have them watch you go thru a sequence on the line. If they are a good pilot, let them try your ship...they will be surprised at how easy it is to fly.
Once they enter competition, if the new pilots are having fun (most will), it won't matter that they are flying a Kaos and some other Sportsman pilots are flying 2 meter ships. If they have fun and learn, they will move up and be a regular competitor. It's up to US.