I have heard a lot of good reports on the Minelab 11 inch pro coil, while I have a Sunray x-12 coil. Are there any advantages of the 11 pro coil worth me selling the Sunray X-12 to get the 11 inch pro coil. Does the 11 pro coil have anymore punch or would the 12 do the same or better ? What does the pro coil weight compared to the Sunray ?