i know a kiter that has a 12 mtr Shockwave and a 16 mtr Slingshot Turbo Diesel.
and from his reports, the 16 mtr Turbo Diesel has a heaps lighter bar pressure...
I have both a 12 and 16 mtr turbo diesel, i havent tried a shockwave,
but have to say that i think that my 16 mtr is a little on the heavy side, and the 12 mtr is just right........
all the waroo owners i know totaly love theyre kites so i suggest trying one even tho i,m a Slingshot fan

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if you can demo a 12 mtr Turbo Diesel, do it!!, they totaly rock, or if ur willing to wait for the 2007 kites try a Slignshot LINK.