After remembering some work from freud on obsessionnal nevrosis (know now as OCD), Ive ask me the possibility that subtype can be organized in block too...
If block from model A can be understand as freud "block", we can perhaps organize subtype in block, ie LSI-ego , LSI-id , ect... Finally this is linked somewhat to 16 sub system :
EII - ego : pure pattern ?
EII - id : EII - IEI
EII - super id : EII - LSE
EII - super ego : EII - LSI
idk if this is observable IRL, or if this link to some existing socionic stuff...
Perhaps we can get from this some way to categorizing more in the 8 subtype system, as
EII - id (EII-Fe , EII-Ni) will have certain common caracteristics (cuz even if Ni & Fe are totally different, its a function from id who is strengthened, ie used like an id function (always if we understand 4 block having 4 different functionnality, a bit like freud said))
EII - super ego (EII-Ti, EII-Se) some other, ect