This was a while ago but to explain it in simpler terms, I'll break apart the logic:
-Each 'particle' of Dhar attracts and is attracted by all forms of magic.
-Each 'particle' of Wind magic attracts and is attracted by its own Wind.
-Each 'particle' of Wind magic repels and is repelled by non-Dhar Winds.
-Both attraction and repulsion is governed by field effect rules, the strength of the effect is proportional to the 'particles' proximity.
-Both attraction and repulsion effects scale with the intensity of the Wind present.
From these base principles, you can derive several rules of thumb, that are true, but not axiomatically true:
-Magic already in contact has the greatest attraction to each other. A continuous thread of Dhar linking two Waystones can be stretched and bent by the presence of magic, but is extremely unlikely to be broken. The same applies to the paired orbiting Winds.
-The presence of magic creates an 'ionization path', where things are slightly less real and thus more receptive to more magic passing through it. This is a similar basis to a lightning bolt - once a pathway exists, it is so enormously easier to travel down that path that the pathway would continue to exist until it has run out of energy to sustain the pathway.
-Magic naturally sorts itself at high concentrations.
--Dhar attracts Dhar, so ironically, it is extremely hard for a given 'particle' of Dhar to escape the warp rift it originates from. Most Dhar created in the Chaos Wastes are drawn right back in unless they embed into something too 'heavy'.
--The Winds attract themselves and repels all other Winds but Dhar, this means high concentrations of the Winds given sufficient space would rapidly sort themselves into eighths, producing small amounts of Dhar only where the streams are forced to touch.
--However, at such high concentrations, any produced Dhar would be drawn to the center of streams of pure Winds(which would be the natural behavior of anyhing attracted to magic), and as long as the Dhar is a small proportion of the stream, it can only attract more of the Wind itself. A channel of 99% Ulgu and 1% Dhar would only attract even more Ulgu, the other Winds cannot overcome the repulsion of the Ulgu, and the Dhar cannot escape the center of the stream until it loses coherence.
Assuming the base premises continue to be true(they might not, due to the weakening of reality at very high magic levels), then you have two solutions to transferring magic over long distances:
-At low quantities, you want to 'pulse' trios of magical particles in the general direction of the next Waystone. A Hysh|Dhar|Ulgu trio would attract all Hysh, Dhar and Ulgu in the area it passes through VERY slightly, but:
--It is moving too fast to actually combine with anything other than what it runs into directly.
--The Hysh and Ulgu will repel all Winds it runs into, preventing them from combining with the Dhar.
--The Hysh and Ulgu will absorb any Hysh and Ulgu it runs into, preventing them from joining the Dhar.
--If it runs into Dhar, the trio would collapse into a single blob of Dhar once they overcome the repulsion, which...is still moving towards the Waystone, and is attracted to the blob ahead and the blob behind it, staying on course. The bigger the trio, the more Dhar it takes to subvert.
--To break up the trio, you just need a large, relatively pure mass of the component Winds except Dhar, which would peel off the two orbiting pairs, and absorb the Dhar.
-At high quantities, you want thick streams of pure Winds, which will naturally gather up all Winds aligned with it, as well as any Dhar in the area, without forming more Dhar, because the Dhar can't actually get at any other Wind. You can peel off useful quantities of the pure Winds, unless you peeled enough off that you have a stream of mostly-dhar, which would be a very bad idea.
So, going further from this, it sounds like you generally speaking, do not want your transmissions to be traveling at ground level, where they are easily intercepted by aggregations. You want them traveling underground or high above ground, where they basically act as giant magnet-bullets, dragging all the Winds in the area they pass through towards the next Waystone.
As stone is an excellent insulator of magic, the attracted magic cannot actually combine into Dhar.
This I would note is very rickety theorycraft based only on the known to be flexible rules of how the Winds work.
Not quite the state forcing, but rather the beneficial side effect.
Schooling freed up parents to work longer hours, as their children are gainfully occupied and require less supervision. That said children are also being prepared into more versatile workers is also a boon.
"I knew she loved puns, but is this going too far?"
