I see that you have successfully managed to get FIVE listings (maybe more) in Yahoo! with the root domain of deadlock.com.
Very interesting, when Yahoo! states it will accept no more than two.
You stated that you managed to get around this by "isolating" the sub-domains or pages -- which makes sense.
However, I have been told Yahoo! checks submitted e-mail addresses and maybe phone numbers, etc., to keep sites from submitting more than two.
I am interested in multiple submissions using different keyword selections as the basis for different "sites".
Question: How did you manage to avoid the potential problem?
Do you submit different e-mail addresses, contact names, telephone numbers, company names, etc?
(I understand you submitted different "web site titles".)