Here's my thoughts on what you have listed so far.
12m Gaastra Jekyll (year?) 2010 and will be similar to what you have,
12m Naish Helix 2010 only and will have a bit less bottom end
17m Ozone Zephyr - Ideal kite for the winds you have described you want this new kite for
Core GT (size?) 15M
F-One Bandit 3 (size?) 14M
Best Kahoona V2 (Size?) 13.5M
North Rhino (size?) 2009 14M
2010 Cabrinha Switchblade 14m or Crossbow 16M
2010 North Rebel 12m. also not big enough, you are just replacing the 12M Cult
vipar said...
I am leaning towards the Deltas, can someone describe their flight characteristics, i.e speed through the air, turning speed, bar pressure.
I also notice quite a few 12's being mentioned. Are the current breed of 12m that much more powerful than my cult? What about the bigger sizes being faster turning?
I should mention that I had a 14m Cabrinha Contra (2007) and while I loved the power it was a pig. So i sold it.
Delta's generally have medium bar pressure, good turn rate, but the larger ones are slow, like all larger kites. They still turn good though, and are excellent compared to kites only a few years old in the same sizes.
The 12M kites being mentioned will not get you going in the winds you have described and will just replace and completely overlap your current kite.
The Contra was a low wind kite, and worked well for that, but it was slow with high bar pressure and some people just hated it, it just killed your arms if you flew it for a while (it did mine).
There is going to be another kite to consider too, the new Ozone Catalyst 14M, which should become available from Ozone dealers within the the next 7-10 working days. Also a 15M C4 would be something to consider it has the same power as most 14M kites and turns better.
I think either the Zephyr or the Catalyst will be the best option for you, second would be the 14M Fone/SB or 16CB/Kahoona 13.5