I've been using the 60a version in 2wd short course on 17.5 and 8.5 with great results. In fact, I've switched all my ESC's over to Hobbywing/Speed Passion and couldn't be happier.
I have a 60a in an OFNA JL10e on a Novak SS Pro 13.5, an XeRun 80A in my Jammin SCRT with a Neu 1509 5200KV, and an XeRun 80A in a Losi 8ight Tekno with a 2200kv Tekno motor. I haven't had any trouble with a single one and the program card works awesome.
The only thing I would advise, is purchase the extra capacitor kit and replace all the wires with something high quality like wet noodle.
Good luck!