Yeah, a hump pack not only allows for more performance from the servo, but the servo draws more power because it is digital, therefore you need more capacity, which a hump gives you.

The digital should work without a problem... Works on all other stock Radio systems.

Get the hump, I recommend the Venom 1200mah 5-cell hump pack from tower. $22, but it's worth it!!! Do you have a charger for a hump pack???