Problem on definition update

Hi,

There are 100 PC connecting with SEPM in our environment. I want to control Live update for those PC. Please help to advice.

Option 1

- 50 PC update latest definition (e.g. 9 Dec 2014) and test for 3 days. reamaing 50 PC with update 3 days later but just update definition of 9 Dec 2014.

Option 2

- Control definition update time with SEPM. Since "Heartbeat" is using to communicate with SEPM, can't excatly control update time.

Thanks