Greg,
I agree with Mike in his assesment of what detectors to pick in that priority. CZ, Coinstrike, 3D if you are going to hunt some relics and get into the trash. CZ's are simple to use, and since I have never used a Coinstrike ( but I really would like to get a used one to try out) it seems if you put the time in and not get discouraged it's one fine detector. Some guys use the Coinstrike as their numebr one relic machine.
One good thing with a Fisher ( and your Deleon) is if you buy new, you do have the lifetime warranty. Fisher and Tesoro get high marks in that category.
As I detect more with my CZ and X5, I am appreciating the analog/knob functionality more and more, as I can glance down and know exactly what settings my detector is using and make any subtle adjustment in 1/2 second. When I go from my DFX ( which is a great machine once it's set up correctly) back to my CZ or X5, it just seems a heck of alot easier.
Point is, I think the Coinstike is in the middle of the road there in terms of easy of adjustablility. The menu/screen kinda looks like knobs and it's easier to adjust then lets say a DFX or Explorer II, but the CZ's ( espcially the older ones like 5 and 6a) adjust with 2-3 knobs. And most of the time, once the volume is set, that never changes, and once you set up ground balance and sensitiviy, the only thing you really mess with is the discrim.
I always hunt with all the tones unless the bits of iron drive me nuts, then I switch to only hearing the 2 tones on my 6a. I think the CZ70 has the 4 tones. Also, you can switch into all metal in a heart beat and get a wide scan deep seeking detector to hunt the C.W. sites to find where the camp metal is and then swtich back to discrim and slow down.
Guess I am pointing you toward a CZ. Try to get a used one and learn it. You will not be dissapointed as long as you take your time. At first you will probably dig up lots of deeper iron, but do a search on Fisher CZ and I believe there is a Mikes Tips CZ page that has lots of good info on how to learn what iron 'feels like' on a CZ ( like when pin pointing... which is another thing I love about the CZ..the VCO pin point)
Good luck in whatever you end up with....just USE IT for a while and do not get discouraged.
JC