diff --git a/CHANGELOG.md b/CHANGELOG.md
index c17d50c..92305d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,7 @@ Before any major/minor/patch bump all unit tests will be run to verify they pass
 
 -   [x]
 
-## [0.3.0] - 2022-07-15
+## [0.3.0] - 2022-07-16
 
 ### Added
 
@@ -30,7 +30,6 @@ Before any major/minor/patch bump all unit tests will be run to verify they pass
 ### Fixed
 
 -   is_updated in strip/bus levels now returns a bool, is level dirty or not?
--   range expressions in vban.
 -   for basic kind only, virtual bus now subclasses physical bus, since it is the only version you may
     attach a physical device to a virtual out.
 
@@ -40,47 +39,42 @@ Before any major/minor/patch bump all unit tests will be run to verify they pass
 
 ## [0.2.3] - 2022-07-09
 
-### Added
+### Changed
 
--   obs added to examples
+-   only compute strip_comp, bus_comp if ldirty.
+-   switch from strip to bus in obs example.
 
 ### Fixed
 
 -   bug in strip fadeto/fadeby
+-   comp added to util.
+-   range expressions in vban.
 
-## [0.2.2] - 2022-06-27
+## [0.2.0] - 2022-07-02
 
 ### Added
 
+-   obs added to examples
 -   Readme updated to reflect changes.
 -   device, gainlayers, levels, bus mode sections added.
+-   minor version bump (probably should have been major since changes to ldirty effect client code)
 
 ### Changed
 
 -   No longer passing data in ldirty notification.
 -   rw changed to rew in recorder class to match capi
 
-### Fixed
-
--   mdirty added to observer updates
-
-## [0.2.1] - 2022-06-18
+## [0.1.10] - 2022-06-28
 
 ### Added
 
--   dsl added to examples
 -   pre-commit.ps1 added for use with git hook
 
 ### Fixed
 
+-   mdirty added to observer updates
 -   Error in cbindings
 
-## [0.2.0] - 2022-06-16
-
-### Fixed
-
--   Bug in factory builder
-
 ## [0.1.9] - 2022-06-21
 
 ### Added
@@ -138,6 +132,10 @@ Before any major/minor/patch bump all unit tests will be run to verify they pass
 -   bus mode mixin added to bus factory method
 -   type, version implemented into base class.
 
+### Fixed
+
+-   Bug in factory builder
+
 ## [0.1.5] - 2022-06-14
 
 ### Added
diff --git a/README.md b/README.md
index db6a9e1..b13d0d9 100644
--- a/README.md
+++ b/README.md
@@ -120,6 +120,20 @@ The following properties are available.
 -   `bass`: float, from -12.0 to 12.0
 -   `mid`: float, from -12.0 to 12.0
 -   `treble`: float, from -12.0 to 12.0
+-   `reverb`: float, from 0.0 to 10.0
+-   `delay`: float, from 0.0 to 10.0
+-   `fx1`: float, from 0.0 to 10.0
+-   `fx2`: float, from 0.0 to 10.0
+-   `pan_x`: float, from -0.5 to 0.5
+-   `pan_y`: float, from 0.0 to 1.0
+-   `color_x`: float, from -0.5 to 0.5
+-   `color_y`: float, from 0.0 to 1.0
+-   `fx_x`: float, from -0.5 to 0.5
+-   `fx_y`: float, from 0.0 to 1.0
+-   `postreverb`: boolean
+-   `postdelay`: boolean
+-   `postfx1`: boolean
+-   `postfx2`: boolean
 
 example:
 
@@ -186,6 +200,11 @@ The following properties are available.
 -   `label`: string
 -   `device`: string
 -   `sr`: int
+-   `returnreverb`: float, from 0.0 to 10.0
+-   `returndelay`: float, from 0.0 to 10.0
+-   `returnfx1`: float, from 0.0 to 10.0
+-   `returnfx2`: float, from 0.0 to 10.0
+-   `monitor`: boolean
 
 example:
 
@@ -344,6 +363,7 @@ vm.vban.outstream[3].bit = 24
 ### Command
 
 Certain 'special' commands are defined by the API as performing actions rather than setting values.
+
 The following methods are available:
 
 -   `show()` : Bring Voiceemeter GUI to the front
@@ -379,6 +399,15 @@ with voicemeeterlib.api(kind_id) as vm:
         print(vm.device.input(i))
 ```
 
+### FX
+
+The following methods are available:
+
+-   `reverb`: boolean
+-   `reverb_ab`: boolean
+-   `delay`: boolean
+-   `delay_ab`: boolean
+
 ### Multiple parameters
 
 -   `apply`
diff --git a/tests/test_factory.py b/tests/test_factory.py
index 5fdbfab..a12a257 100644
--- a/tests/test_factory.py
+++ b/tests/test_factory.py
@@ -25,7 +25,7 @@ class TestRemoteFactories:
 
     @pytest.mark.skipif(
         data.name != "banana",
-        reason="Skip test if kind is not basic",
+        reason="Skip test if kind is not banana",
     )
     def test_it_tests_remote_attrs_for_banana(self):
         assert hasattr(tests, "strip")
@@ -43,7 +43,7 @@ class TestRemoteFactories:
 
     @pytest.mark.skipif(
         data.name != "potato",
-        reason="Skip test if kind is not basic",
+        reason="Skip test if kind is not potato",
     )
     def test_it_tests_remote_attrs_for_potato(self):
         assert hasattr(tests, "strip")
diff --git a/voicemeeterlib/bus.py b/voicemeeterlib/bus.py
index ecf4339..5c04b6c 100644
--- a/voicemeeterlib/bus.py
+++ b/voicemeeterlib/bus.py
@@ -238,7 +238,7 @@ def _make_bus_mode_mixin():
 def _make_effects_mixin():
     """creates an fx mixin"""
     return type(
-        f"FX",
+        "FX",
         (),
         {
             **{
diff --git a/voicemeeterlib/misc.py b/voicemeeterlib/misc.py
index e662e64..228aece 100644
--- a/voicemeeterlib/misc.py
+++ b/voicemeeterlib/misc.py
@@ -4,7 +4,7 @@ from .iremote import IRemote
 class FX(IRemote):
     @property
     def identifier(self) -> str:
-        return f"FX"
+        return "FX"
 
     @property
     def reverb(self) -> bool:
diff --git a/voicemeeterlib/strip.py b/voicemeeterlib/strip.py
index 547e640..dccb3a9 100644
--- a/voicemeeterlib/strip.py
+++ b/voicemeeterlib/strip.py
@@ -298,7 +298,7 @@ _make_channelout_mixins = {
 def _make_effects_mixin(kind):
     """creates an effects mixin for a kind"""
     XY_cls = type(
-        f"XY",
+        "XY",
         (),
         {
             param: float_prop(param)
@@ -314,7 +314,7 @@ def _make_effects_mixin(kind):
     )
 
     FX_cls = type(
-        f"FX",
+        "FX",
         (),
         {
             **{