I agree with what Emerald is saying and what Licker4U is stating as well.
There are some benefits to building only one site with no mirrors but then again I have had sales from group 2 and 3 when none has come from group 1
I'd suggest setting up a spreadsheet of some sort so you know who and when you subbed a site. This way you do not need to submit to everyone today. You can evaluate whether it is wise to mirror the site 1 to 6 months down the road.