I have absolutely no experience, nor heard anything about Duratrax ESC's.
From what I've heard / read, the Hitec HFX has real good value for money. But I havent tried it.
For 90$ at Towerhobbies, you can get the Novak Dually. No motor limit. BEC is 6 volt, meaning 25% faster steering servo, than ESC's with 5 volt BEC. 2 profiles, one for mod and one for stock. At my opinion, it got all what is needed and a little more.
Schumacher Mi5 - Sanwa MT-4 / RX-462 / KO Propo PDS-2123 - Nosram 5600 X-treme Saddle Pack - LRP SPX Zero/X12 17,5 - Nosram Stealth Touch Evolution - MAAS SPS 9250