I agree with u and disagree a little. If u are observant, u will find out that as they are issuing pre screening mail, they are at de same time issuing nomination from the pre screened application. This is an indication that pre screening mail has a limit. For instance, they can not issue pre screening mail of more than 155. So the 25 nominated applicant, does it include pre screening?.and secondly, if they have issued up to 100 pre screening mail, the chances are very slim for April applicant.
My 2 cent though