Hello all - I am Rick Hart from the North Texas == between DFW and Red River . Bought my 1st detector in 87 a Teknetics Mark 1 -- detected for several years - then got back into the hobby back in 2002---. use a Notka Impact and Minelab 540. Rapid growth here in North Texas has limited my detecting areas --mainly look for Bulldozed older homes /business before the concrete /asphalt is started . thank you Rick