Yeah, there IS a difference. You have to draw the line somewhere though between price and performance (not that I did - I use the Zero G ti brakes 
I actually like the DA 10 brakes BETTER than my Zero Gs overall (based on modulation, ease of use/adjustability, etc. The Zero Gs are super strong and with good modulation, but very hard to adjust “just right”. I swap wheels a lot between 3 and have to adjust every time as I’m super anal about braking feel/rub/etc. and I train in some hills and use them until smoking sometimes!. The DA 10 calipers make it super easy with the changes.