Well I have finally decided on buying the Minelab X-Terra 705 after thinking about the MXT and the DFX. I feel like the gold pack will suit me well in finding gold jewelry on the beach and coins and other things on parks. Can you guys just give me some more information about this detector and what you have learned because I have never used a Minelab before. The detector I have right now is a Bounty Hunter 505, how much of an upgrade will this be? Anybody with any input would be greatly appreciated because my dad and I are completely new to the X-Terra line.