Anything SharePoint and technology: "The SPPersistedObject, CustomTimerJob Name=Sync User Details List, could not be updated because the current user is not a Farm Administrator." in SharePoint 2010

When deploying a custom timer job in our UAT enviornment I came across the following error message:

"The SPPersistedObject, CustomTimerJob Name=Sync User Details List, could not be updated because the current user is not a Farm Administrator."

Farm Config: SP2010 SP1, June 2011 CU

A few things that I checked:

OWSTIMER service account"SVC_XXXXXXX" was in the "Farm Administrator's Group"
Added the App Pool as the Farm Admin group (not sure if this the right way of doing it)
Set the "RemoteAdministratorAccessDenied" to false
Retracted the soltuion and redeployed it

Powershell command to set the RemoteAdministratorAccessDenied to False:

//PowerShell code

function Set-RemoteAdministratorAccessDenied-False()
{
    [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint") > $null
    [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Administration") > $null

    # get content web service
    $contentService = [Microsoft.SharePoint.Administration.SPWebService]::ContentService
  # turn off remote administration security
    $contentService.RemoteAdministratorAccessDenied = $false
   $contentService.Update()
}

Set-RemoteAdministratorAccessDenied-False

References:

http://support.microsoft.com/kb/2564009

http://www.thorntontechnical.com/tag/current-user-is-not-a-farm-administrator#.Ui0kTzanrY8

http://sharepoint.stackexchange.com/questions/22757/configure-sharepoint-user-for-timer-job