Ok, so I've done some testing.
My initial thoughts were kinda correct.
Using the Kol for example, with 4 forward firing points for its beam, it will divide its total between the targets.
It seems once it uses all of its initial firing points, it no longer understands how to split the animations properly, and makes all points fire again at the new target, but then it gets even more confusing.
1 target = 4 beams on 1.
2 targets = 2 beams on 2.
3 targets = 1 beam on 2, 2 beams on 1.
4 targets = 1 beam on 4.
5 targets = 1 beam on 4, 4 beams on 1.
6 targets = 1 beam on 4, 4 beams on 2.
7 targets = 1 beam on 4, 2 beams on 1, 3 beams on 1, 4 beams on 1.
Similar results with the Radiance.
1 target = 2 beams on 1.
2 targets = 1 beam on 2.
3 targets = 1 beam on 2. 2 beams on 1.
4 targets = 1 beam on 3. 2 beams on 1.
5 targets = 1 beam on 3. 2 beams on 2.
6 targets = 1 beam on 4. 2 beams on 2.
Can anyone do the math? I'm not seeing a proper pattern here.