Recall that early criticisms of C-SS by members such as ZAM, Walter B. and myself with lot# research were in the beginning not well received by Doug, who gave the appearance of being completely taken in by the forgery as evidenced by his archived statements such as "plenty of period photographic evidence" supporting C-SS and his detailed magnified analysis describing C-SS as having "clear period pulver and base construction". The move to heavily scrutinize C-SS was not originally Doug's and he therefore should not, IMO, receive full credit for its unmasking.
Doug merely saw the way the wind was blowing with C-SS and so began to very gradually change his 'opinions' to conform to this new way of thinking (founded by others, not himself). Archived posts show him reluctantly giving ground in some areas (namely, late CKL M42s with high lot#s) while continuing to take firm stands in others (namely, his "vet acquired" M42 hkp C-SS helmets in a tight lot# cluster). Only after buying the lot# book did his complete 'expos-e' of C-SS come about.
The repeated, lengthy closures of C-SS threads elsewhere illustrate that, IMO, mere citizens are incapable of getting to the bottom of this fraud.