Sitecore Powershell Migrate Field value whilst checking if field exists and its from Base template

migrateWithBaseTemplateCheck.ps1

$_BaseTitleTemplate = Get-Item 'master:/sitecore/templates/User Defined/RCN/Base/_Base Title'

New-UsingBlock (New-Object Sitecore.Data.BulkUpdateContext) {
    foreach($item in Get-ChildItem -Path "master:\content\" -recurse) {
         if (![string]::ISNullOrEmpty($item."Title"))
         {
             $itemTemplate = Get-ItemTemplate -Item $item
             
             foreach($baseTemplate in $itemTemplate.BaseTemplates) {
                 
                 if($baseTemplate.ID -eq $_BaseTitleTemplate.ID) {
                     Write-Host "Update Item " $item.Name
                     $item.Editing.BeginEdit()
                     $item["Heading Title"] = $item["Title"]
                     Write-Host "Title Update to " $item["Title"]
                     $item["Title"] = ""
                     Write-Host "Title cleared"
                     $item.Editing.EndEdit() | Out-Null
                 }
             }
         }
    }
}