Here's a save point, end of allied T30:
https://we.tl/t-bxQMQw3RmB
Now I want all the Allied tank brigades into 21 AG as that is then the easiest way to send to France (& I can then decide to use them on map or to boost the combat power of key formations)
so my allocation is

SU not locked

gives me ... ok this is predictable

SU locked

gives me

which is really not what I expected.
Since good attribution of SUs is crucial to allied play, I'm a bit worried about how this is working out, especially as I get the same spread regardless. Also my artillery etc stuff is wandering around