minelab go find 40

Here's an air depth test for the Go Find 40: Can anyone post similar for the 60, 44 and 66 please?

Hi, I am looking to purchase my a metal detector to start getting into the hobby after having a few attempts with a friends detector. I dont have a lot of experience, so I need some advise from experienced users on which unit to purchase to start with. I have a shortlist of 3 detectors in my...