EL SEGUNDO - The nearly daily offseason workouts have left Lakers center Ivica Zubac feeling stronger, slimmer and faster. Zubac also has reported improvement enough in his outside shooting that apparently he has beaten teammate Larry Nance Jr. in 3-point competitions.Despite all the improvements that have left Zubac and the Lakers encouraged about his game, the Lakers' second-year center may not take his biggest leap until Las Vegas Summer League play ends.