Hail my fellow Dragon brothers

This is regarding the Dragon Style Monks.
I've done some thinking, regarding the Boundless Fists and Six Dragons Strike Abilities.
And I must admit, I don't get why we need to get another ordinary punch, on the same timer as the Boundless Fists,
- Six Dragons Strike : uses more endurance, packs a higher punch (what I think should be used with two-handed weapons)
- Boundless Fists: uses less endurance, packs a lower hit, but you get two hits with it? (works well, with h2h weapons mixed with ice/flame secrets)This is the only difference I can see between those two abilities. But is there something im overlooking?
- Whats your thoughts on this?Jabu...