Few questions about duck diving.
Is it possible to duck dive a fun shape? I realize this question leaves a lot unspecified. Well, to start, I'm 6ft/160lb and riding a 7ft fun shape, I realize that still doesn't cover everything since one 7ft board could be way more buoyant than another, but for the purposes of this question let's assume it's a "normal" 7ft funshape, if such a thing exists.
I'm having partial success with my duckdives, with a 3ft wave I can duck dive the breaking crest or the wall of whitewater almost 100% of the time. With a bigger wave, I can do it if the wave is just breaking and I go through the wall, but if it has just BROKEN and I have 4-5 feet of whitewater coming at me, I usually get sucked quite a bit, i.e. the duckdive is not successful. I guess timing and power is more critical as the waves get bigger. I'm thinking it IS possible to duckdive this board, but it would probably be easier on a not-so-floaty shortboard. I've heard though that some people can duckdive 9ft longboards. Is that true?
Also, when you sink the front end, do you actually push the board "forwards" (in the direction it is pointing) under the water, or do you just push downwards (toward the ocean floor)? I usually try to push it forward a bit, and when I sink the back end I use my foot, even though the "how to duckdive" animation on this site (which I've studied immensely) says to use your knee. Anyone else use a foot?
One last thing... does having a lot of forward speed before starting it help? Or does it make it harder to sink the front end? Can you just do it sitting still?
Thanks for putting up with all my questions, hopefully someone will read this monstrosity and answer at least some of them. :D