Good Q. Lowboy
I had a 600 - didn't work out for me - I helped create, design and develop the first Explorer's and onto the Terra's, E Trac & CTX
My preference was always with the Terra's and E Trac.
I used the 505 all thru the summer but have now dusted off the E Trac and recharged batteries etc.
I also returned my Deus control box for a Service and a battery and I will use IT in conjunction with my E Trac.
My 'work method for patch detecting' is, E Trac first and then a follow-up trip with the Deus.
I'm willing to give the 800 with the FIRST release software a run in the now damper soils I like and will then Upgrade it to the NEW software and make my decision then on whether or not I would 'ditch' the two aforementioned machines?
Des D