learning curve on load 2 or load 4 ( tac com quad load) is almost the same. i think learning traditional load for confined space ( car, barricade, etc) is worth learning, but quad load is the only way to fly for a wide open stage. also a positive, quad load can be learned in about an hour, and ninja quick in about 4. traditional 1-4, about 10,000 reps. go straight to quad load, load 2s feel dumb in short order.