The DMV does not run drug suspensions concurrently. The 5 year suspension starts as soon as you are convicted, not arrested. So if you were convicted of the last DUI, or DWLSR charge in April, 2010, then it makes sense that you would not be eligible for a hardship until April 2011. Furthermore, if you ever drove in the time period from April 2009 onwards, you will NOT be eligible until at least one year has passed with no driving.