A little test today with a cluster of 4 parachute kites, without their respective bears which play the role of ballast, but with the small ballast included on the edge under the two visible holes located between said edge and the middle.
Although attached to their respective loops located less than 1 m from the top of their respective canopies, they flew in an anarchic manner without climbing and without remaining grouped, a bit like in this test with the common attachment much further away (several meters) and without the intention of grouping them.
This essay is too rudimentary to draw conclusions. However a cluster of parasails (lift+ drag and single position to ensure lift) could be more difficult to control than a cluster of parachutes (only drag, and any position).
