I sold my Etrac shortly after acquiring my Deus. My issue with the Etrac was of course weight (which I hadn't really focused on until I had a Deus in my hands), and the fact that it didn't like Iron trash areas as it would basically just "stall" our over a carpet of old nails etc. like you might find around the site of an old burned building.
For me any loss of depth isn't an issue as I haven't perceived that I am missing anything due to depth issues. Oregon was settled in the late 1800's and so doesn't have the amount of targets at extreme depths as some other areas of the country that were settled hundreds of years earlier...most of my recoveries whether with an Etrac, Whites V3i, or Deus are at depths of 7-8" or less which I believe is within the parameters of the Deus with not problem.
I find the Deus very easy to configure, its weight is a dream come true, and the sensitivity seems superb, as I have found bb size targets at 7" that banged hard.
I agree that in ground clear of iron trash that there was no easier machine to run than my etrac, if you passed over a coin, it literally screamed out, but again I am talking about what most posters would deem to be shallow targets....
I am very happy with my decision to switch to the Deus for a multitude of reasons, but gotta admit I long for the simple "dig me" sound of the Etrac on some days....
If I had a choice when purchasing a Deus(which I didn't) I would choose the 11" coil. I have both and the 11 seems smoother and with the speed of the Deus, you can get great target separation ....Good Luck