Wow what a set of detailed answers - took me awhile to work through it all.
It makes sense now that you've explained it. Thanks!
If the DW formations are authentic then I'd rather they be kept around for the extra flexibility in buying options.
On the Blitz forum there is some discussion of experimental rules that would only allow the purchase of pre-defined formations (except for the leftover points at the end). This is why I asked about the Inf Cbt Sup Co. formation in my earlier post.
The experimental rules discussion is at
Blitz Forums
Deadeye