Hereunder is my post in a separate forum thread, I thought some might find this useful or correct me if am wrong
Ndifon,
I'm Kenyan and as you can see from my signature, my CN is even higher than yours. I was once worried like you that I wouldn't get an interview date. But after thorough research (asking former DV applicants, present applicants, Dept. of State statistics and bulletins) and plain faith in God, I have no doubt that I will get an interview date.
First you have to know that in almost every year, in the final month (Sept) all CNs become current in Africa including Cameroon (except for DV 2008). Going by the cut-off numbers issued by KCC so far, all remaining CNs are HIGHLY likely to be current after August. Hereto I have attached a document titled 'Trends for DV cut-off'.
You need not worry that your country will be over-subscribed (that visas will no longer be available) before your turn, because according to Dept. of State statistics, they rarely over-subscribe. In fact, they have never over-subscribed in Cameroon. You know that the limit to the number of DV that can be issued to a particular country is 7% of available DV globally; because every year 50,000 visas are made available globally, that translates to 3,500 per country. The most number of DV Cameroon has received in a single year is 1,530 (DV 2009). See attachment titled "FY09 Annual Report"; even countries that traditionally have the highest numbers of selectees like Nigeria, Ghana, Bangladesh, Ethiopia, rarely do they reach the 3,500 ceiling (however Ethiopia has on a number of occasions gone slightly beyond the ceiling). In my country Kenya, visa issuance rates have been in the region of 50% (only one in 2 applicants gets). It all boils down more to better preparations and relatively less to how high or low your CN is. Though as you mentioned, applicants with low CNs have a comparative advantage - they have more time to have their docs in order in case they are put on admin processing, while you will have no margin for error.
Also note that between DV 2000 to DV 2009, only once did they surpass their global ceiling of 50,000, and that was for DV2003, when they issued 50,810 visas globally. These figures deeped as low as 40,076 globally in 2007; meaning that about 10,000 potential visas were not issued globally for one reason or another that year.
So my dear, your chances of getting an interview date are very high; what you need to concern yourself with is having all the required documents in order when the time comes, because it will come but more likely in the final week of Sept. The person who will host me in the US got his visa on the 30th Sept 2008 the final day!
I hope this helps.