Local.xml nodes to disable annoying and/or inefficient admin spam

local.xml

<?xml version="1.0"?>
<config>
    <!-- disable annoying adminhtml observers and modules -->
    <adminhtml>
        <events>
            <controller_action_predispatch>
                <observers>
                    <awall_exts>
                        <type>disabled</type>
                    </awall_exts>
                    <awall_upds>
                        <type>disabled</type>
                    </awall_upds>
                    <awall_check>
                        <type>disabled</type>
                    </awall_check>
                </observers>
            </controller_action_predispatch>
            <!--The following paypal observer improves performance of system config,-->
            <!--but causes paypal system config settings not to show.-->
            <!--<adminhtml_init_system_config>-->
                <!--<observers>-->
                    <!--<paypal>-->
                        <!--<type>disabled</type>-->
                    <!--</paypal>-->
                <!--</observers>-->
            <!--</adminhtml_init_system_config>-->
            <controller_action_predispatch>
                <observers>
                    <ambase_upds>
                        <type>disabled</type>
                    </ambase_upds>
                </observers>
            </controller_action_predispatch>
            <controller_action_predispatch>
                <observers>
                    <xtento_feed>
                        <type>disabled</type>
                    </xtento_feed>
                </observers>
            </controller_action_predispatch>
            <controller_action_predispatch>
                <observers>
                    <urapidflow>
                        <type>disabled</type>
                    </urapidflow>
                </observers>
            </controller_action_predispatch>
            <controller_action_predispatch>
                <observers>
                    <adminnotification>
                        <type>disabled</type>
                    </adminnotification>
                </observers>
            </controller_action_predispatch>
        </events>
    </adminhtml>
    <modules>
        <CLS_AdminEnhance>
            <active>false</active>
        </CLS_AdminEnhance>
    </modules>
    <!-- END disable annoying adminhtml observers and modules -->
</config>

How you seen speed increases in admin once disabling?