diff --git a/EN-state-of-the-art b/EN-state-of-the-art
index 9e3ff786aecf73e18e564564331cfcb54ad4d869..6dcdd31eae062059d9a48fb8c6c628588e7df1fa 100644
--- a/EN-state-of-the-art
+++ b/EN-state-of-the-art
@@ -129,17 +129,31 @@ https://www.mediawiki.org/wiki/Extension:AbuseFilter/Rules_format
 TODO: Flowchart of the filtering process!
 
 * How is a new filter introduced?
+
 https://en.wikipedia.org/wiki/Wikipedia:Edit_filter/Instructions
+"This section explains how to create a filter with some preliminary testing, so you don't flood the history page."
+- read the docs https://www.mediawiki.org/wiki/Extension:AbuseFilter/Rules_format
+- test with debugging tools  https://en.wikipedia.org/wiki/Special:AbuseFilter/tools (visible only for users who are already in the edit filter managers user group)
+- test with batch testing interface (dito)
+- create logging only filter: https://en.wikipedia.org/wiki/Special:AbuseFilter/new (needs permissions)
+- Post a message at WP:EFN (edit filter notice board), so other edit filter managers have a chance to improve it
+- Finally, fully enable your filter, e.g. add warning, prevention, tagging, etc.
+
+tips on controlling efficiency/order of operations
+lazy evaluation: when 1st negative condition is met, filter terminates execution
+
+"You should always order your filters so that the condition that will knock out the largest number of edits is first. Usually this is a user groups or a user editcount check; in general, the last condition should be the regex that is actually looking for the sort of vandalism you're targeting. "
 
 https://en.wikipedia.org/wiki/Special:AbuseFilter
 "PLEASE be careful. This is potent stuff. Unless it's urgent, always test your filters with no actions enabled first."
 
-there seems to be a batch testing interface
-
-weird? the test interface https://en.wikipedia.org/wiki/Special:AbuseFilter/test
-says: "For security reasons, only users with the right to view private abuse filters or modify filters may use this interface."
+there seems to be a batch testing interface: https://en.wikipedia.org/wiki/Special:AbuseFilter/test
+however, it says: "For security reasons, only users with the right to view private abuse filters or modify filters may use this interface."
+so, you should already be aproved as a filter manager in order to test?
 shouldn't all filter editors be able to test??
 
+same goes for the debugging tools: https://en.wikipedia.org/wiki/Special:AbuseFilter/tools
+
 * What happens when a filter gets triggered?
   * 4 filter actions (are users whose edits tripped the filters notified for all of them?)
 
diff --git a/notes b/notes
index f77f1f5a17cb7b53dfd955c56d55c46823ab81fc..216017e051f0c2d20861d5a041c1ef8c91cc5b9b 100644
--- a/notes
+++ b/notes
@@ -304,3 +304,16 @@ http://www.andrewjgarrett.com/
 
 =========================================================================
 https://en.wikipedia.org/wiki/Wikipedia:Edit_filter/Instructions
+
+"This section explains how to create a filter with some preliminary testing, so you don't flood the history page."
+- read the docs https://www.mediawiki.org/wiki/Extension:AbuseFilter/Rules_format
+- test with debugging tools  https://en.wikipedia.org/wiki/Special:AbuseFilter/tools (visible only for users who are already in the edit filter managers user group)
+- test with batch testing interface (dito)
+- create logging only filter: https://en.wikipedia.org/wiki/Special:AbuseFilter/new (needs permissions)
+- Post a message at WP:EFN (edit filter notice board), so other edit filter managers have a chance to improve it
+- Finally, fully enable your filter, e.g. add warning, prevention, tagging, etc.
+
+tips on controlling efficiency/order of operations
+lazy evaluation: when 1st negative condition is met, filter terminates execution
+
+"You should always order your filters so that the condition that will knock out the largest number of edits is first. Usually this is a user groups or a user editcount check; in general, the last condition should be the regex that is actually looking for the sort of vandalism you're targeting. "
diff --git a/todo b/todo
index b95b53a391b5f0e1aad213233a702030871276eb..ca7172d273553d3b53a9e1b605e4a19e1b78833b 100644
--- a/todo
+++ b/todo
@@ -18,7 +18,6 @@ https://en.wikipedia.org/w/index.php?title=Special:AbuseFilter&dir=prev
 https://de.wikipedia.org/wiki/Hilfe:Bearbeitungsfilter
 https://tools.wmflabs.org/ptwikis/Filters:dewiki
 https://en.wikipedia.org/wiki/Wikipedia:Tags
-https://en.wikipedia.org/wiki/Wikipedia:Edit_filter/Instructions
 https://en.wikipedia.org/wiki/Wikipedia:Administrator_intervention_against_vandalism (AIV)
 https://en.wikipedia.org/wiki/Wikipedia:Usernames_for_administrator_attention (UAA)
 https://en.wikipedia.org/wiki/Special:RecentChanges?hidebots=1&hidecategorization=1&hideWikibase=1&tagfilter=abusefilter-condition-limit&limit=50&days=7&urlversion=2
@@ -64,3 +63,4 @@ https://en.wikipedia.org/wiki/Special:AbuseFilter
 https://en.wikipedia.org/wiki/Special:AbuseFilter/1
 https://tools.wmflabs.org/ptwikis/Filters:enwiki:61
 https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/2009-03-23/Abuse_Filter
+https://en.wikipedia.org/wiki/Wikipedia:Edit_filter/Instructions