You do get a general sense of what may be a correct swing plane when you�re using this device; however, it is difficult to know whether or not you�re making a ôpreciseö swing plane (as this device claims to teach you) because depending on various factors such as your slight wrist actions, your variable distances from your stance to the end of the laser point, your body�s lateral movements, and where you place your grip on this thin plastic tube, you CAN have the laser pointer follow a straight line AND still be off the ideal and correct swing plane. In other words, you CAN still make mistakes even if the laser pointer follows a straight line. Also, the grip is slippery (actually there is no grip; it�s just a single thin & short plastic tube, so you don�t get the sense that you�re holding a golf club). Nonetheless, if you keep practicing, you will find your tweaks to match your style of swing, and this device can be somewhat helpful for beginners and alike.