Hi all new on here I use a XT 705 just got the 6" 3khz coil few days back been out twice on pasture land with it settings 99 tones sensitivity between 20 and 24 all segments open don't seem to be have much joy with it dug lot of iron seems very erratic can any one tell me what settings they use do I need to turn sen's down been swinging very slow any replies be very great full thanks in UK