Alexi is not at the top... they all have way to go. A real player "never" "ever" gives up practicing... Petrucci is not at the top too but he's 13 years older than Alexi; he's still saying he practices 2-3 hours a day at worst. Because he knows he has a lot to learn, still. He's not at the top, too. Alexi has a lot to learn, too.
Let's say I'm wrong; then, if you're at the top you'll have to "defend" that position and work/practice even harder. You'll have to release way better than AYDY... That's my opinion.