Have noticed that the Explorer seems to be louder than the ET on deeper targets or at least I think so. Sounds louder on high conductive targets , it might be the reason people think the Explorer 11 is deeper but I am not so sure they are , maybe people don't set their ET up right .
When you use your machine and have set the program you are using , and I hope you are not using the pre set program's ? put the machine into digital read out and go slow , if you have only nails knocked out then most ferrous trash will come in very high tone and read high on the ferrous number . Any ferrous number below 18 investigate , if in iron mineralised soil or near iron that sort of number could be a coin in those conditions . It will be very noisy but that's the only way to find what others miss , use Sensitivity in auto then it will at least keep the machine stable to a point.
No wonder so many lose patience with the Explorer , its because they don't realise that the machine is capable of giving you an enormous amount of info on a target. Its the same with the ET and CTX though with the CTX you get the 2 target track which is the ability to see a ferrous and a non ferrous target . A good idea that we could do with in a new ET .