Shawn,

There are PLENTY of differences between the two. I've owned both. The Agg. III is MUCH easier to build (More prefabrication) as it has pre-sheeted flying surfaces, pre-primed glass parts, holds more fuel, and is larger than the AGG. II. The airfoil is better on the AGG. III and the hatches fit much nicer. If you have a choice go with the AGG. III!!! It builds much the same as a Balsa Bandit except the wings on the AGG.III are presheeted. . (Not the new Super Bandit)

Kevin