Actually symetry has nothing to do with Typical vs. Nontypical, but rather to do with Gross vs. Net Score (deduction of side a and b). Also beams are referred to as just the main beam and a more than 2 antlers(beam) animal is consider a freak of nature with really no classification, so I assume you mean tines Duckhunter(G1, G2, G3, G4).

NT-Is simply abnormal antler growth! Such as: tines coming out or down of the main beam, points branching of a G position tine(Kickers, stickers, split brows, etc) and so on.

Typical - is normal antler growth tines (G's) off of mainbeam and straight up. An animal with kickers can still be considered Typical they would just count as a deduction to the final net score.

Check out: www.pope-young.org & www.boone-crockett.org for score sheets and more info on the two classes.