You don’t re-enter a W-kayak from the space between its hull tips unless you’re a skinny kid. You do it riding over the boat with a leg on each side. Our website’s online user manual offers re-entry instructions in case you capsize in deep water:
http://www.wavewalk.com/FISHING_KAYAK_USER_MANUAL.html#CAPSIZE_RECOVERY
That section includes an online instruction movie that was shot in moving water. I’m including it here for your convenience:

The hulls rarely get completely filled with water - usually there’s more water in the hull that was lower when the boat got overturned, and the other hull either stays dry or has little water in it.
Removing the excess water gets done quite easily, preferably with a small hand bucket, or a bilge pump.
In any case, you’re not required to paddle sitting in water, since the water gets drained from the saddle to the bottom of the hulls.

Yoav

Another comment was made about wiether I was afraid of grounding on rocks, and no… Longpoint Ontario is a huge sand point angled out into Lake Erie, where I have yet to find a rock anywhere on about 60 miles of beach! This was a very big part of my choice for sea kayaking in 6 footers, not a rock to be found nope, not quite foolish enough to surf in on, say, the granite shores of Georgian Bay…
I’ve completed exactly one roll in my ‘rotomolded tupperware heavy lump’ I’ve attempted many, and only completed it once. I think my kayak is more difficult than some to roll. Once upside down, it wants to stay that way, the edge bouyancy resists righting the boat.

About kayak entrapment: I’ve found the opposite, that I have difficulty staying in the kayak to complete the roll, never mind ever feeling trapped!
If you relax at all, you simply fall out, your spray skirt releases and out you pop, you are now swimming beside a very difficult to re-enter narrow boat. I’ve completed a kayak self-rescue circus act shinnying down the hole, while trying not to tip(without the benefit of a paddle to brace with- I actually did this once without a paddle-float), strapping myself in, applying the sprayskirt, (no easy task in large waves), putting a large bilge pump down through the skirt and pumping for about 20 minutes straight to get enough water out for the kayak to be paddleable.

There’s many people very proud of thier bomb-proof rolls. And with good reason! They are a kayaker’s pinnacle achievement, maintaining your cool while water jets up into your sinuses, (unless you paddle everywhere wearing your noseclip) and thinking of the correct righting movement sequence while upside down, holding your breath, trying not to fall out, break the seal of your sprayskirt, while worried about the consequences…
Now you really gotta respect those whitewater kayakers! They wear a helmet for good reason! A whack to the head while carreening inverted downstream would mean you just don’t quite get to even try your bomb-proof roll! They find you 15 miles downstream… I never quite got up the courage to do serious whitewater, and now I already have enough dings, I’ll stick to more relaxed pursuits, and have a little fun in the waves now and then…

How is the wavewalk when it gets swamped? How difficult is emptying the water and re-entry in rough conditions in water over your head? It would seem to me that entry over either end between the hulls would be easy as pie, but how is it with two completely swamped pontoons and very little floatation? Maybe include a video of this on your website, as I’m sure many people considering your craft might be concerned about this.

Perhaps I should have said ‘demo and instruction’. For some dealers it’s OK to show the boats they’re selling on a demo day, but it’s different when you know that you have to instruct customers on how to operate the boat, and make sure they get it - It can take time, and it certainly demands good instruction capabilities that few dealers have, or are willing to use for this purpose.
These days we’re capable of instructing our customers through our website, by email, and by phone, and it works pretty well.

Yoav