Chimaera vs Cerbera dampers

[JJREED]

So can anyone answer this questions:
Looking at a set of AVO dampers on eBay. New old stock.
Gas list the same kit for both chimera and cerebra, where as AVO list diffent kits (I think).
Does anyone know( I'd have thought they'd be the same but with at the most ever so slightly different valving.)
Clearly they will have different springs, but I'd have expected same open/closed lengths and bushing sizes etc.

Any ideas?

[Mr Haribo]

I got sent the wrong shocks from Gaz they are valved different it made the ride really hard !

[gruffalo]

The Chassis on the two cars are quite different, why would the dampers be the same?