the quality is just fine, couldn't see anything to complain about.
Relaunch I didn't test since I didn' t drop the kites.
Nemesis 18:
in Egypt I was able to take out the 18 for a further ride.
What already felt good on a short ride in Germany, I had some more time in different winds in Egypt.
At the beginning I had less winds and didn't feel much power of the kite, specially when jumping. The jump were not high as I have assumed to.
When the wind picked up I got lifted pretty well, with high and floaty jumps, as I expect it from a 2004 kite. I can't say it jumps higher or less high as any other kite I tried.
If you compare it to a R2 18 you have less low end, but therefore better upwind performance since the kite flies further to the wind window, and also better high end.
It turns very good for an 18 sqm kite. Since I only can compare it to the R4 18, I think they are very similar in performance. Can't remember the R4 18 that much to be 100% sure about the comparison.
Nemesis 21:
I was able to take out the 21 for about 2hrs.
The kite is fast for its size. It turns quick and kiteloops are easy going with it and still possible.
I will now compare it to my R2 20, which I know very well:
It has less downwind pull than the R2 20, the R2 is a harder puller, so ok for heavy riders. Lighter riders can fly the 21 better than the 20.
Less forces on the bar, makes it nice to fly.
The 21 doesn't have such lowend as the R2 20. How much the difference is, I can't say, but I give it about 1-2 knts.
Therefore the 21 has a better high end, is easier to control in stronger winds.
The lift and hangtime is nice, but the R2 20 jumps higher and also longer.
So for me it is not an alternative to my R2 20.
The 21 is a good choice for lighter riders and riders who want to go out in lightr winds and have some waves to play with it. Also for kiteloops.
But for jumping the R2 20 is still the one and only, but only for riders with some weight (around 80 kgs and more).
Conclusion:
The 18 and 21 are good kites and up to 2004 performance.
I still prefer my R2 20 as low wind kite due to its performance.
The 21 compared to R4 20 it is similar, but the R4 20 has a bit more low end, the 21 jumps higher and the 21 turns a bit faster.
This is based on my observations and depending on my style (jumper, more loops now), weight (90kgs), board (X-Shooter XXX), etc.