diff --git a/tomcat-7.0.conf b/tomcat-7.0.conf
index 03119b7..bd141e8 100644
--- a/tomcat-7.0.conf
+++ b/tomcat-7.0.conf
@@ -1,48 +1,8 @@
-# System-wide configuration file for tomcat services
-# This will be loaded by systemd as an environment file,
-# so please keep the syntax.
+# System-wide configuration file for tomcat services. 
 #
-# There are 2 "classes" of startup behavior in this package.
-# The old one, the default service named tomcat.service.
-# The new named instances are called tomcat@instance.service.
+# Use this file to change default values for all tomcat services. Change the 
+# service specific ones to affect only one service. For tomcat.service it is 
+# /etc/sysconfig/tomcat. For tomcat@instance it is /etc/sysconfig/tomcat@instance.
 #
-# Use this file to change default values for all services.
-# Change the service specific ones to affect only one service.
-# For tomcat.service it's /etc/sysconfig/tomcat, for
-# tomcat@instance it's /etc/sysconfig/tomcat@instance.
-
-# This variable is used to figure out if config is loaded or not.
-TOMCAT_CFG_LOADED="1"
-
-# In new-style instances, if CATALINA_BASE isn't specified, it will
-# be constructed by joining TOMCATS_BASE and NAME.
-TOMCATS_BASE="/var/lib/tomcats/"
-
-# Where your java installation lives
-JAVA_HOME="/usr/lib/jvm/jre"
-
-# Where your tomcat installation lives
-CATALINA_HOME="@@@TCHOME@@@"
-
-# System-wide tmp
-CATALINA_TMPDIR="/var/cache/tomcat/temp"
-
-# You can pass some parameters to java here if you wish to
-#JAVA_OPTS="-Xminf0.1 -Xmaxf0.3"
-
-# Use JAVA_OPTS to set java.library.path for libtcnative.so
-#JAVA_OPTS="-Djava.library.path=/usr/lib"
-
-# You can change your tomcat locale here
-#LANG="en_US"
-
-# Run tomcat under the Java Security Manager
-SECURITY_MANAGER="false"
-
-# Time to wait in seconds, before killing process
-# TODO(stingray): does nothing, fix.
-# SHUTDOWN_WAIT="30"
-
-# If you wish to further customize your tomcat environment,
-# put your own definitions here
-# (i.e. LD_LIBRARY_PATH for some jdbc drivers)
+# This will not be sourced by systemd as an environment file. Feel free to add 
+# your overrides here. Shell invocations will work.
diff --git a/tomcat-7.0.service b/tomcat-7.0.service
index 103d464..157e7e1 100644
--- a/tomcat-7.0.service
+++ b/tomcat-7.0.service
@@ -9,9 +9,8 @@ After=syslog.target network.target
 
 [Service]
 Type=simple
-EnvironmentFile=/etc/tomcat/tomcat.conf
 Environment="NAME="
-EnvironmentFile=-/etc/sysconfig/tomcat
+EnvironmentFile=/etc/sysconfig/tomcat
 ExecStart=/usr/libexec/tomcat/server start
 ExecStop=/usr/libexec/tomcat/server stop
 SuccessExitStatus=143
diff --git a/tomcat-7.0.sysconfig b/tomcat-7.0.sysconfig
index 3117bf7..9e33f1f 100644
--- a/tomcat-7.0.sysconfig
+++ b/tomcat-7.0.sysconfig
@@ -1,11 +1,46 @@
-# Service-specific configuration file for tomcat. This will be sourced by
-# systemd for the default service (tomcat.service)
+# Service-specific configuration file for tomcat services. This will be sourced by
+# systemd for the default service (tomcat.service).
+#
 # If you want to customize named instance, make a similar file
 # and name it tomcat@instancename.
+#
+# This will be loaded by systemd as an environment file, so please keep 
+# the syntax. If you need to use shell expansion, configure the necessary 
+# variables in /etc/tomcat/tomcat.conf.
 
-# You will not need to set this, usually. For default service it equals
-# CATALINA_HOME. For named service, it equals ${TOMCATS_BASE}${NAME}
-#CATALINA_BASE="@@@TCHOME@@@"
+# This variable is used to figure out if config is loaded or not.
+# Default is empty to load /etc/tomcat/tomcat.conf for overrides.
+#TOMCAT_CFG_LOADED="1"
 
-# Please take a look at /etc/tomcat/tomcat.conf to have an idea what you
-# can override.
+# In new-style instances, if CATALINA_BASE isn't specified, it will
+# be constructed by joining TOMCATS_BASE and NAME.
+TOMCATS_BASE="/var/lib/tomcats/"
+
+# Where your java installation lives
+JAVA_HOME="/usr/lib/jvm/jre"
+
+# Where your tomcat installation lives
+CATALINA_HOME="@@@TCHOME@@@"
+
+# System-wide tmp
+CATALINA_TMPDIR="/var/cache/tomcat/temp"
+
+# You can pass some parameters to java here if you wish to
+#JAVA_OPTS="-Xminf0.1 -Xmaxf0.3"
+
+# Use JAVA_OPTS to set java.library.path for libtcnative.so
+#JAVA_OPTS="-Djava.library.path=/usr/lib"
+
+# You can change your tomcat locale here
+#LANG="en_US"
+
+# Run tomcat under the Java Security Manager
+SECURITY_MANAGER="false"
+
+# Time to wait in seconds, before killing process
+# TODO(stingray): does nothing, fix.
+# SHUTDOWN_WAIT="30"
+
+# If you wish to further customize your tomcat environment,
+# put your own definitions here
+# (i.e. LD_LIBRARY_PATH for some jdbc drivers)