It looked to me like the Eq wasn't hitting on the targets except in the 'gold' modes. I have done the almost exact same 'garden' tests with small gold 'pickers', nuggets and chains. Mine will NOT pick them up except in the 'gold' modes. With sense at 25, and several different recovery speeds, iron bias settings, etc., it almost every time would not hit on the small stuff and never at over 4-5" deep in damp beach sand at Galveston (not a very mineralized sand). I have read that beach hunters cannot run the 'gold' at a beach in the water as it is too noisy.
I am not sure it was designed to hunt a beach in Gold, rather it was designed to 'hunt' beaches in the 'beach' program and 'prospect' in the 'gold' mode in shallow water for nuggets and flakes at shallow depths. Mine will hint on a very small thin gold ring at 4" deep in sand though. Now that doesnt mean that someone can figure out some combination of the two or design a superb program of their own. With a few months of use around the world I do believe it will be proven that the Eq may be the absolute best all around' detector at any price on the market today.
This is not a 'rag on the Eq' just my opinion as to it capabilities. I heard someone on the video say they have a program to hunt relics, and would love to know the settings for that. Would also love to see some settings for all modes, any particular 'tweaks' etc., for each. I use it almost always on really trashy 'ghettoized' demolitions with bottle caps, screw tops, pull tabs, rusty iron nails, pieces of copper and lead everywhere, and with the big coil it is a real test! Setting different tone bins and volumes helps, but to me, it seems the machine is overwhelmed with the nails. As I said, I am still experimenting with Iron bias, recovery and sweep speeds in order to get past the iron.