I've been at a few indoor events that people tried the 4-D. and it can be done. Just not the best tool for that type of flying - IMHO! Inak, Wren, Echo, Reflection are all better suited. Not saying it can't be done ......
I'm thinking of the above "Prism 4D Superlight" video. In the beginning it says 0-2mph. I can find no zero wind sequences in this video. The kite is always on the same side of the camera (hm... am I looking for "evidence" in the same way as e.g. a lunar landing denier: https://skeptoid.com/episodes/4536 (debunking!))". During zero wind you need to work to keep the 4D in the air, the kite will/can be in all directions around you and you typically land and start several times. True is that this kite requires very little wind to fly "in a normal" way (and can function well enough with short lines so that you can fly in very small fields).
I was out on a new field during the weekend a week ago with my 4D. The forecast said 1m/s (2.2mph), but by releasing seeds from dandelions (a tiny tiny bit humid though) I estimated the top speed to 0.3m/s (0.7mph). Sometimes the seeds just fell plain downwards (zero wind), which is rare outdoors. Since there were quite much people in this small park I hesitated to start at all, based on the limited success I had when the kite was new (about 1year+) with zero wind flying then. Would my say 10 times I've used it (during mostly non-zero wind conditions) have paid off? I'd say that I was able to leave the park without feeling humiliated, but the in air tricks were not more than axles (more thoughts related to this session (and others) will be found in my next flight log dump in "Exults Chunky Log..." (Yes, this is shameless promotion!)).
However for me low wind and gentle inputs are a good exercise to become a more complete dual line kiter. Talking of exercise this session meant more healthy physical exercise compared to more normal wind kiting. For my contribution to the mandatory kite drawing drooling I refer to the image in the end of: http://kitelife.com/forum/topic/7260-karma-prism-4d-w-color-choice-8-12-16/?do=findComment&comment=58831 .
The above was all I originally intended to write in this post, but if you are slow enough to do the actual posting the reality catches up. Yesterday there was an unexpected low wind session since the forecast told me something different. In the bottom of my kite bag was the "hidden" 4D that I had missed removing when removing the Shadow when preparing for the session. To this point I've almost only used it as an emergency kite and has not used it much when the conditions were good/normal. I used the (long some would say) original about 17m lines that came with the kite. Much to my surprise yesterday it was possible to transfer fade launches and lazies (several, but with recovery by help from the ground) from other kites. It was also possible to to (in my own opinion) nice and reasonably flat axles. These axels were most easily accessible after a downwards turn at the edge of the wind window allowing the kite to sink back lowering it's nose. Having that as a start position the following axel looked goood.
After a few sessions, the HQ Shadow (that I got in the beginning of the summer) started to feel like a "real" kite, while I thought the 4D was more only a low wind thing that was probably good for increasing these aspects of your abilities. Now, especially after yesterdays session, I now see the 4D as a "proper" kite as well.
Handles and a set of four lines. And wind.
The Supersonic is a boatload of fun. Fast and furious with a good amount of pull. The Blast is the same only it will plant you face down if you're not careful. The Blast is a fairly good low-wind flyer with experience. Without quad experience they are both quite a handful.