Personally, I think this business about a pin "floating around" is nonsense. Basing thoughts on that is a good foundation for target panic IMO. If you are happy with your pin doing figure 8's, you will time the shot and punch the trigger...most people do it, but it doesn't make it right, and it kills accuracy. Then again, accuracy is all relative. Many people are happy with a "kill shot" when with a little correct practice they could hit the hair they wanted.
Assuming proper draw length, try drawing and aiming without shooting. You'll see, eventually, you will be able to lay the pin where you want it, and it will not leave the mark. That doesn't mean you are forcing it to stay there, it just will, even though you are completely relaxed. Do not accept the pin crossing over the mark, back and forth. The figure 8 nonsense is proof that you aren't relaxed and locked in the shot as your muscles are moving the pin around.