I have been using the D2Ws6 master for a year now and have been making excellent finds , I use the Full Tones program with a few adjustments. The one adjustment I never changed was FT offset …. I contacted Calabash digger for input about FT offset..well he made a demonstration video explaining FT offset ( Thank you Calabash ). The factory setting is 5 , but after watching and having a better understanding of adjustment , I have increased it to a setting of 15 and the unmasking ability is so much greater. Digging good targets with trash in close proximity. It’s like it’s moving targets apart so the audio is much clearer and cleaner. Got to say, if you haven’t changed this setting , give it a try …… It has made an excellent detector even better !!!! HH Tony