Jerry - I think your 12/7 post on this thread makes much sense.
I have the E-Trac for a few years and have owned the Deus for about 3 months now with probably 50 hours of use. I am also a Minelab man...
MY detecting conditions are very close to the UK minus the iron - plowed fields that have been farmed for hundreds (unfortunately not thousands) of years. But my potential finds are very different than what they are looking for in the UK. In the UK (I have personally detected there with the E-Trac) you are digging EVERYTHING that is not iron. That means gold quarter staters coming in at 12-06 and hammered silver coming in at 12-12 to 12-17...Here in the US, I've found thin reales at 12-28...but we are always more excited when we have higher CO items showing on the target ID...
So what's my opinion on the Deus????
Well - first off you cannot beat the ergonomics of the unit. I mean let's face it, the weight alone makes the machine an absolute pleasure to swing. It's so light, you have to watch out or you'll swing too fast. The wireless phones are a nice addition but the light weight is the really great feature.
Programming ease. The machine comes with 9 pre-programmed modes. The difference between some of the modes is ever so slight - sometimes just a different freq is the difference. Making a custom program is very easy to do. I typically use my E-Trac in 2 tone FE mode. For the Deus, I created a custom 2 tone mode that works great for me in my conditions.
Depth - I think the Deus stock coil is small. I believe that I get more depth from the E-Trac with the 10x12 SEF. Would the larger Deus coil help? Might do so - but for $550 - ehhhh....???? The dealers should offer the Deus with a choice of either coil for a slight price difference for the larger one...I believe that everyone would buy the machine new with the larger coil. This all being said, so far when out with my buddy and his E-Trac with stock coil both of us were able to hear each other's signals.
Sensitivity - I think the Deus is very hot on low conductor and small items. I find myself using the 12khz freq vs. the 8khz as the choice for my custom program. We all know the higher the freq the more sensitive to lower conductive items like gold...but here in the US, the majority of great dirt finds are going to be silver. The manual says that 8khz will be deeper and more sensitive to higher conductivity items than the 12khz or 18khz freqs. I'll need to play around with the 8khz for awhile to see if it hits more good targets.
Target ID - I am convinced that the E-Trac delivers a better target ID than the Deus. What does this really mean? When I get an initial signal of say a 12-36 to a 12-46 on the E-Trac I don't expect the conductivity to drop all that much after recovery. So these numbers really excite me and I'm usually not disappointed. With the Deus on many occasions I'll get a 82+ reading which is a good target here in the US (large copper - silver) and after recovery it sometimes drops all the way to a mid 60's number - not such a good target. I'm not sure if that occurs because the CO scale of the E-Trac at 1-50 is half that of the Deus at 1-99??? If I was detecting in a park, yard or lawn area where digging each hole was a conscious decision I'm not that trusting of the Deus right now. Maybe that will change with time and experience, but when using the E-Trac in 2 tone FE mode in someone's yard (with them watching and the pressure on) I can usually tell them before digging what the target should be.
All in all, I find that I take both machines with me every time I detect. If the field is nice and flat I have a preference for the Deus. If the field is rough plowed with flattened corn stalks I'll reach for the E-Trac. If I've been detecting for a few hours with the E-Trac and start getting tired I'll immediately switch to the Deus. After using the Deus for a few hours and then switching to the E-Trac...forget it as it feels like it weighs an absolute ton of bricks.
At the end of the day - I believe if you walk over the item either machine will find it. My oldest find to date, a 1666 Spanish one reale cob, very thin and the size of a dime was found when I was using the E-Trac. Last week I found a 1905 Peruvian half dime while using the Deus...Both items were in plowed fields and both were under 7" deep.
Your choice depends on your detecting environment. I believe the Deus was created for Europe (and places with Europe conditions like where I detect) with it's plowed fields and pastures. I believe the E-Trac does a much better job in your discriminating digging environments like parks, schools and homesites plus works equally as well on the fields and pastures too.
Just my opinion and I'm no expert (although I do get out there quite often)...
Barry