Ok I heard the F70 gets the same performance as the F75 if you use the 11"DD coil. Ok I wanted to test a sales man I'm not mensioning any company names but I just for the hesck of it asked him what was better for coin hunting the minelab safarri or F75 he told me F75, Ok I ask him if I had 11"DD on F70 if it would also be better then Mnelab safarri he said no???? ok I thought ok he said this cause he's trying to make more money?? Ok he said that the F75 has faster procesor then F70 and that the F70 will miss coins when hunting in around iron objects??? Ok give me your opionions???? I think this is a good exsample of someone trying to make more moeny what do you think???