Not many have mentioned preferring a hand-held, but, the "Different strokes for different folks" does apply. I wouldn't detect without the DX-1. I find exactly the opposite with it's depth. I can usually locate the target center by using the probe at the area I pinpointed with the coil, on top of the dirt, which, allows you to dig a much smaller hole (since you now know where it is for sure). If target is too deep to get a signal from the probe on top, then I would make a bit larger flap, then probe the hole. You can zero in on the direction of the target within the hole by listening for the highest pitch. After a while you will be able to zero in on your target quite fast, with the biggest benefit of being able to dig without scratching your find. By having to wait until you are within an inch or so to get a signal from a handheld, your odds of already scratching a potential nice find can be quite high.
I'm sure you will have no problem selling it, but, I would try and put in some more time with it before truly deciding to dump the probe. The thickness shouldn't matter as you are just using it as a "pointer" to the target under the dirt. Yes, the cable does hang out, but, I haven't found it bothersome, except when you might be in tight woods or brush.
All just my opinion, but, just wanted you to see what benefits you might be missing. If you have a buddy with good experience with one, maybe, he could show you how to get the most out of it. Good luck, Dave