Own both and have put the time in with both. The ergonomics of the CTX is a winning feature over the ETrac, the bells and whistles as the GPS side of the CTX has never been used (waste of money-but just my own opinion)
Target separation it has to go to the CTX over the ETrac. This was proven at one small roadside park I hunted well with the SE, then the ETrac till the coin targets were almost depleted. I would say a two hour hunt might give me a couple of pennies.
In came the CTX and the park produced another 25 silvers and a couple of hundred coins. Sounds pretty weird having that many targets go undetected with the ETrac doesn't it? 90%+ of all were in with a nail, or bottle caps or a tab, or all three items with a coin. So target separation is what impressed me with using the CTX.
I'd like to try it again with the Deus, but haven't had the time or the passion to dig bottle caps and tabs that the Deus loves to sound off on. That and this little park isn't on a well travelled route that it once was, so other sites take president over this one.