I'm with the turn-turtle clan on this one. One, because I can't duck dive worth a darn regardless of equipment, and two, because I can turn and flip back on really quickly unless it's either way overhead or right in the impact zone. Heck, I even turtle my mid-lengths most of the time because it's more efficient for me. That being said, variations on the push through/over/under techniques above work great for me in smallish or weak waves. Timing is key, as is positioning. Once you have the mechanics of it figured out, there are many ways to skin the proverbial cat. Except duck-diving. Even as a water-polo-fit kid riding shortboards, I just couldn't do it worth a damn when the waves got semi-serious.