The one thing I have noticed is that when the kite is wet it turns differently (a note here: I thin most kites that I have act weird when they are wet.) . It might be the material, a friend of mine said it feels like a material that Gaastra used for some of their models. I also noticed that the leading edge has to be pumped hard. I have never had problems relaunching it though...
Hey Rory (and Alex)
Interesting but here are the specs copied from viper's website.
Polyester Rip Stop Canopy 53grm/sqm.
Dacron Leading Edge, Trailing Edge and Wing Tips 160grm/sqm
Industry standard materials, no compromise at all with Viper. "
It seems ALMOST ALL the good kites are made with these materials
(Airush, Windwing, North, Best, Slingshot, Globe Rider etc etc) and there ar only 2 manufacturers anyway apparently (not including Cuben
)and this is the Taiwan version as opposed to the Japanese. Gaastras problem was the material layout (cut) with millions of small panels from what I gathered, not so much the materials they used but could be wrong.
Anyways I TOTALLY checked them out before buying at KiteHIGH (was much more confident buying with them old timers supporting the product, A1 service and backup every time, eg: I tore my 12m on some rocks 5 weeks after buying, replaced within days, no questions asked, OUTSIDE my warranty period, stoked!!)
Bar and lines, before you go out, make sure all 4 lines are correct length (ALL lines stretch over time from my experience!), as you stretch them out off a nail or something strong. Then just make sure the 5th line is slightly loose in the air or do what Alex said re 5th line tensions for different conditions. I have flown almost every brand and not once have bar and lines been perfect from factory, gotta check them your self always, like a pilot checks his new plane before taking off! The kites fly awesome on just 4 lines too.
Let me know if you need more bar help Rory...