no need to start another pro4 topic..
you should ask your question on the Main Pro4 thread.
there are plenty of pro4 racers there ready to help you out.
to answere your question...yes you can use stick packs.
HB WCE HARA EDITION CYCLONE: LRP Sphere TC, KO 2363 digital servo.
HB HARA EDITION PRO4: Gone to a new home..