Max Limit (10) on EAS Devices Reached

I am about to create a new throttling policy to Increaseeasmaxdevices from 10 to 30. And then I will assign this policy to a provision account which will be used by tech support to support and config Active Sync devices. 

Commands:

Creat New Policy

New-ThrottlingPolicy -Name blahblah -EASMaxDevices 30

Assign New Policy to the provisioning account:

Set-Mailbox MOBSCREENS -ThrottlingPolicy blahblah

Question I have is that will this new policy by any chance screw up the default policy???? We have BES in our environment and most Active Syn is taken care over there. 

Thanks!