Please reference the thread here https://bitcointalk.org/index.php?topic=1238834.0 , look for "Coin Control" at the bottom of the original post. Click the link, it will explain everything you need to know to group or separate your stakes. It is suggested to stake 100,000 or more per block. If this is out of your range, please stake in even numbered blocks. E.G. 10,000, 20,000, 30,000, etc. Although this is not required, it should help. The larger block size (single deposit) you have, the faster you will stake after your coins age 5 days.