I am trying hard to work out what could have been the cause for any instability of this Speed2.
We have flown quite a few here and all were rock solid. We had the 10m up to 30mph+ in very turbulant winter winds and it was as good as gold.
It didn't suffer any tip tuck and wasn't lifting you on the beach when the gusts came through.
The very first one we had sold in the UK needed a small adjustment on the Mixer which takes about one minute thanks to the new stoppers but all Speed2s since were fine straight out of the bag.
Now it could be that this specific Speed2 would benefit from this marginal adjustment too but it shouldn't really need it as it was from a later shipment.
So I am starting to wonder whether it is partly down to adjusting the flying technique a little.
When the bar is pushed all the way out without touching the trimmer on the Speed2 it is still much more depowered than a Manta with the bar pushed out and the trimmer set to full depower.
The old Speed1 was more like the Manta in its depowerability.
This means that if you ride towards the kite or when stationary in gusty winds it is advisable to keep the bar a little pulled in to stop the kite from outflying its wind window.
The minute you are moving along it should be solid and you can benefit from the extra depower and the huge lift this generates.
You have to remember that without even touching the trimmer on the Speed2it has 30% more depower than any other depowerable foil(apart from PS3 and Pulse)
The Speed2 has just been tested in the German Kitesurf Mag and has been verified as having more actual depower than any other kite in their test which included the latest Bows, SLes and C-shape kites.
Regarding set-up time I can't personally see how the two kites would differ at all.
Both have 4lines which are already attached to the kites/bars and are ready to fly straight out of the bag.
The Speed needs a little pre-inflation but that is it.
Keep us posted on your findings and we will do our best to get to the bottom of this.