The orbital is a machine wound mod motor. It isn't as fast, but it does the job. The core is a hand wound mod motor. All the pros used hand wound motors and they are needed at the highest levels of competition. They are usually balanced and some other things are done to them.
Pro Spec America/Apex RC - Team ORCA - Awesomatix USA - Roche RC USA - AVID - Sweep - Protoform - Pro-One RC - Slapmaster Tools - Hebiki Design Works - Turtlemaster Racing - Seattle RC Racers - Timezone Hobbies