Just completed testing the latest software upgrade 2 on the Equinox 800. Impressive improvements on the Iron Bias discrimination. Check out the video I made when detecting gold with the new upgrade 2.0 installed.
NB: According to the newly updated Equinox user's guide (Page 52), running in F2 mode "disables" the old "FE" mode, and vice versa. IN other words, you can't run an FE setting, and an F2 setting, at the same time. If you set an F2 setting, then the old "FE" setting is inactive. Then, if you set an FE setting, that deactivates your F2 setting.