Discovery: Who Am I Mailing the Discovery Request to Specifically

I have read blewis' procedural guide and very grateful that I found it. I do have 3 questions:

1. Besides the court, who else should receive my request? Prosecutor? Ok who is that? how would I got about finding who would be the prosecutor for my specific case? Same address as the court?

2. When should I send my request? I know it needs to be sent 14 days before my hearing. Id figure the longer I wait closer to that date the more opportunity the request wont be fulfilled by the time period.

3. If I do not get the discovery within the 7 days as stated in IRLJ 3.1b, I go to court on my day and plead show them documentation of when the "discovered materials" were mailed to my residence and then what? How do I show "prejudice" and move to get it suppressed? Basically if and when the materials requested are either wrong or sent late, what is the next step (Im sure it is on here).

***Also I haven't heard of too many commentators being successful at this. If you have success or failure please comment in as well, Id like to gain all perspective, what to expect, what worked what didn't, etc.

Thank you

Discovery: Who Am I Mailing the Discovery Request to Specifically