I did not consider my 800 fully complete and optimum until I got mine.
In my dirt with my issues, mineralization, massive trash and iron, it is a necessary accessory and the depth can be surprising, actually shocking.
The standard coil works as good, if not better, than any larger coil I have ever used on any other detector as far as separation and picking out tiny great targets in infested sites but...I gotta believe there are at least a few situations where the smaller coil is just a little better at it.
Even one stellar target or bucket lister I am able to find at all or even just a bit easier than I could have with the bigger coil makes it well worth the price.
To me.
It is my coil of choice most of the time in most of the sites I hunt.