It's not just the depth but the simplicity too.
Was hunting yesterday on a beach in heavy wind and rain. Had my CTX3030 out first, with the 11 inch coil. Could not see the screen due to the rain, but I tone hunt mostly with it anyway. Bagged 4 silver coins in an area about 100x50 sq ft. Tried several different settings/adjustments to try to squeeze out one more silver, but my arm was starting to get a bit tired. Some areas were littered with iron nails ( some on top of the wet sand as the tide was rolling out, so the CTX was nulling every do often). In those area's you have to go slow and grid, hence the arm weariness after a while.
Went back to the truck and grabbed my straight shafted mounted CZ6a with the 8 inch coil and GG originals ( which makes this a great rain/bad weather set up where no protection is necessary...the 6a can take a major beating in all types of conditions).
I know this unit like the back of my hand, and all I need to do is it set on Salt mode, GB 5, sens 4, volume 7, disc 0 and I am off. Heck, the unit is set that way from the last salt water beach hunt so I really didn't have to do anything but turn it on !
Bagged 7 more silver dimes/quarters in that same area. Hunting In 0 discrimination, I heard all the iron, yet some silver was right next to it, and when you get that high tone repeatable hit, you know it's gonna be good.
For some reason, silver hits super hard (and deep) on this 6a with the 8 inch coil. Found lots of DEEP greenie quarters too as well as a bunch of nickels ( a few mid/high tone hits but most were high tone only which is a super feature on the CZ).
Not sure yet, but the CTX may be going up for sale.
Everytime I use my CZ's, I find good stuff. Have no clue why I have so many other units !!! HA !