Eugeroic's like Moda, Adrafanil, Armodafanil etc.. are more useful for movement activation and sustaining this along with an anti-fatigue type of action. It's a weak DRI and works great in parkinson's, chronic fatigue, Fibro, and Opiod induced slugishness. Where Addy's and other Amp's are good for mental exercise and acceleration of Mental faculties. digestion of reading material, assignment completion and cognitive flexibility and improvement.
I wouldn't suggest sprinting or a personal best on the squat, Deadlift or Bench while on Amp's. You'd be begging for a heart attack or a stroke! The cardiac side's are crazy;where you could get away with it with Modafanil etc...