Ten vintage Celestions -> Two 4x12s, which speakers for which cab?

[SpiderWars]

10 vintage Celestions
A matching full stack of two 4x12 cabs, so one slant and one straight;
Which speakers would you put in each cab? And which slot in each cab?
The slant would be used solo for most use and the straight would be for recording and full-stack mode whenever that happens (ampfests?).

These are all G12M25-75

3x early 70s Greenbacks (there is one in particular I like most, but I'm picking flyshit out of pepper here)
4x early/mid 70s Creambacks
3x late 70's Blackbacks

I have a little Brown Deluxe that will get one of the unused speakers and the other will probably get boxed up as a spare.

EDIT: the obv correct answer is to buy another vintage cab and two more vintage Celestions but that's been the plan for years now. Trying to keep it to two 4x12s...that are vintage Marshall.

 

[Racerxrated]

I'd X pattern (since they all have the same sensitivity) 2 CBs with 2 Pulsonics, then the same 2 CBs with 2 BBs. If you feel one type is overpowering the other then the louder one put both on the bottom Ala the Friedman cabs.

 

[SpiderWars]

I'd X pattern (since they all have the same sensitivity) 2 CBs with 2 Pulsonics, then the same 2 CBs with 2 BBs. If you feel one type is overpowering the other then the louder one put both on the bottom Ala the Friedman cabs.

That's a good option I hadn't considered. I can't decide between the GBs and CBs which one I like most. So I was always thinking one GB dominant and the other CB dominant and fill in gaps with BBs. And leave a CB for the Deluxe. But even then there's options for placement.

 

[SQUAREHEAD]

Pulsonics GB’s top,
Blackbacks bottom?