Bridge Extension not honoring CustomProperty Values Setting

The Settings for the bridge extension (access) do not respect the BridgeServiceCustomProperty value set.  It defaults to 7 and will only work and create installers with 7.  We currently use custom properties 6 thru 8 and need to move it to something 1 and 2.  Ideally, this shouldn't even come out of a custom property field and should just create/extend the properties into new Bridge Settings dedicated properties rather than using custom properties that might already be in use by customers.