Saw this on YouTube last night and first impressions what a brilliant idea, but now I just think the mechanism wouldn't stand up to the rigors of the sea. (mind you I don't fully understand everything he is saying, so he might be saying it's built like a brick toilettes!!)
[ame=http://uk.youtube.com/watch?v=xRs_wUxKtyA]YouTube - Planche SUB MAGIC[/ame]
[ame=http://uk.youtube.com/watch?v=xRs_wUxKtyA]YouTube - Planche SUB MAGIC[/ame]