The last Whites I owned was a 6000 di pro some 20 years ago. It was a good detector but seemed to be lacking in the depth department. I have used a few other "relic" machines in the ensuing years but have ran into instability problems with most of them even with the gain turned down. The "T" detector was the worst. My question is how much depth and relic sensitivity could I expect from the M6 or MXT with the stock coil in good ground along the southern coast ( Ga-SC )? Also has anyone relic hunted eith the 12" coil on the M6? Thanks for any info. Jerry, South Georgia