Thank Info . The X-70 04 new 705 are great machines. How could few thing make even better. on X-70S I'm sure most here never used an Brand called Nautilus or used DMC2B . The X-70 and and DMC2B are closed in many ways The best feature Love about X-70 two tones low iron/ high tones all other. The DMC2b is also two tones but both All Metal/ Disc mode can both be adjusted own sen setting and all metal also has base threshold. The DMC2b is the best tone only I.D. and tin l brass, lead other targets with both signal heard at same time. Maybe in folks at Min lab in planning future models X line my think about sen settings one for Disc/ and other all metal and include threshold in all metal, it would be one killer machine!!! Chuck