lost 5 mph from switching esc

Asheck, something's making me think about your epa on your radio.. You calibrated at 100, then again at 120.. maybe if you calibrate it at 100, then set the epa to 120, you'll have similar results as the quark? I've never really been sure how that works.. if you calibrate at 100%, but the tx's epa goes to 120%, would you be stressing the controller more than what it was made for?