I need some advice?  How do most of you reconcile the device lists?  I have 2393 in my all devices list, but only 1637.00 in all desktop and server clients.  Ive massaged all the discover settings but want to make sure I have the optimum settings to pick up all devices that are under 60 days old.  I put a new device on the network and the sccm client and mandatory software installs in under 15 minutes.  I have some devices that are excluded from discovery, so they should not be in that list.  I set the discover limit to only capture stuff from AD that has logged in to ad within the last 60 days.  I Im preety sure my numbers are correct but my boss thinks im about 200 devices off. 
  
The list of devices changes constantly obviousoly. How can I reconcile the difference in number of devices in the default list of " All Systems" and "All Desktop and Service Clients" ?		
How do you make sure you are getting all the devices on your network.?