Yesterday I tried back to back the KT Atlas 1130 vs Armstrong HA 1080. they are pretty similar. Granted the KT is larger but I have also briefly tried the Atlas 980 and the findings are the same. I have used the Atlas 205 in the back
take off:
Atlas wins. More gradual, earlier take off. The HA is very good but the Atlas is even better. So far it has been the most efficient foil I have tried both for parawing and winging.
turning:
Atlas wins. Even the 1130 allows for tighter turns, almost idiot proof with ridiculously low stall speed
breaching:
Armstrong more forgiving; easier to push it back under water surface
speed:
very similar without a noticeable difference. Will soon compare HA780 vs Atlas 680 and report back
construction:
Armstrong remains in a league of its own. It's a beautiful object. KT is nice too and the mast is better looking and lighter. however the aluminum fuselage adds a lot of weight and it's quite bizarre they have not (yet) a carbon offering for the fuselage. As it is, there is about 400g difference in weight for the full kit.
also I am not a fan of the stab construction. G10 fiberglass as opposed to cf.
I get it, the g10 riding quality might be better, but KT is a premium brand and should offer the carbon version as well.
my overall opionion:
if you already have an Armstrong HA the swap to KT won't add a noticeable difference. They are both amazing foils.
However, if you don't have an Armstrong yet, and you want a state-of-the-art, modern HA foil, the KT is, by far, the best option right now in the market.
It costs roughly 20% less than Armstrong and its performance is simply sublime. Confidence inspiring, very good for both winging and parawinging.