I guess we all assumed (and you know what happens when we do that, don't we? ;~) ) that you believed the testimony because it wsa the only way we could explain your persistent belief in DW's guilt.
So I guess you're "hooked on fibers" instead?
I'm looking at the big picture, the whole ball of wax, the stuff that isn't refutable. Hair--the one in the sink with root that was DNA matched, blood--DNA match, fingerprint-hers. Then there are the fibers, then his travels, his drycleaning trip--especially the first which he didn't tell the police about 2 hrs after it happened. Not just one thing, several things.