This travel board looks sick. It splits in 3 (so you have 2 sizes in one board), and has double concave with rail channels. The 2 sizes in one board I like and understand but what is this double concave with rail channels thing? Sounds like a wake board to me but I don´t understand too much about board bottoms... Would you need to be very powered up to ride this with the center piece in (140x40)? Probably not a good board for PL Arcs (not efficient enough)?

http://xs-sport.net/catalog/en/23-mutare.html

cool set up, convertibles are nice

the solid foot beds with split sections for the tips was a favored design, can't remember the guy who did it.

i think most would require decent wind , secure design with flex and slick not impossible but fragile