When you choose sling students it's important that you screen them for ill-will toward you. Seeing that a sling "accident" would be pretty easy "happen". Thankfully, though I didn't screen them, these friends of mine bore no ill will, and did a very good job on their first try. As usual all of them used different styles despite having one teacher. Fall 2011 Slings are finished and on their way, stay tuned for more info.