Is there any reason why the title would present a problem? I had a faulty 20A ESC and blew another one. I had spare 30A ESCs for a planned upgrade and read around - the scant info found suggested that higher current capacity shouldn't matter. I'm running the 850kV motors and a 2650mAh, 3s lipo.
NB: quad still yet to fly. Just curious as to general thoughts from the learned on this.