Hi - as the OP thanks for all your responses - most enlightening.
After 13 odd years of kiting, hydrofoils and strutless kites have really rekindled my passion this year. Now I can go some way to answering my own original question, as I now have both brands in the van. Sylvain at Storm was helpful and I took the plunge and bought a 5 and 9 Voyager 2. (I should also mention at this point that Greg BRM is brilliant at answering queries). Have now had a number of sessions on the 5 and a couple on the 9 - I could not be more delighted. The 5 not only makes a superb foiling kite but also, just like the Clouds, a great wave kite - responsive, great drift, stays aloft in marginal airs, downloops with confidence, great wind range and easy to turn off the power when required. So how do the two compare?
-the C2 Clouds weigh slightly less, but have a lighter build mainly in the leading edge (eg Voyager 5m 1.6kg, C2 7m 1.6kg, V2 9m 2.1kg) - but both pack up tiny and you can guarantee that anyone who lands your kite will tell you that your kite weighs nothing
- C2 very simple bridle direct attachment, 4 pulley bridle on Voyager, with a linkage between front and rear, presumably to aid reverse launching (a great feature of the Voyagers, though not tested it in a combat situation yet)
-Voyagers self drift launch on the beach more readily
-both work well tethered launch
-both drift wonderfully and stay aloft in marginal airs
-both highly responsive and light on the bar (Voyagers probably lighter less direct feel, and also more on/off feel which I really like, but is a preference thing)
-both enable me to go a size smaller than strutted kite
-both have a great wind range (possibly wider on the Voyager due to bridling?)
-both inspire confidence
-if you live in Europe Voyagers much cheaper (especially in the smaller sizes, as the Clouds are the same price for a 4 or a 17 at the moment!!)
-just to give an idea -the V2 5m works for me on a foil from about 13 knots, 17 on a surfboard, the C2 7m works from 9 knots on the foil, 13 on surfboard, but then I am only 65kg
-What I really need is a full quiver of both to do full back to back test (Sylvain/Greg?)!!
Its early days, but give me a quiver of either and i would be a happy bunny as they seem to suit my freeride foiling and strapless surfboarding niche very nicely indeed. They are easy and fun.
The Voyager has some knot options on bridle which I have not investigated yet - has anyone else tried these out?
Still interested in what others have to think, though maybe the naysayers and strutless deniers could take their negativity to another thread