diff --git a/README.md b/README.md
index ab5d8e7..469a871 100644
--- a/README.md
+++ b/README.md
@@ -103,13 +103,14 @@ Given a single IdP entityID, the ``probe_saml_idp.sh`` script probes all browser
 
 ```Shell
 $ id=https://idp.incommonfederation.org/idp/shibboleth
-$ $BIN_DIR/probe_saml_idp.sh -a $id
-0 redirects:2;response:200;dns:0.000;tcp:0.062;ssl:0.141;total:1.047 https://idp.incommonfederation.org/idp/profile/SAML2/Redirect/SSO urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect https://idp.incommonfederation.org/idp/shibboleth https://incommon.org
-0 redirects:2;response:200;dns:0.000;tcp:0.062;ssl:0.149;total:1.140 https://idp.incommonfederation.org/idp/profile/SAML2/POST/SSO urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST https://idp.incommonfederation.org/idp/shibboleth https://incommon.org
-0 redirects:2;response:200;dns:0.000;tcp:0.062;ssl:0.142;total:1.070 https://idp.incommonfederation.org/idp/profile/Shibboleth/SSO urn:mace:shibboleth:1.0:profiles:AuthnRequest https://idp.incommonfederation.org/idp/shibboleth https://incommon.org
+$ $BIN_DIR/probe_saml_idp.sh $id
+0 redirects:2;response:200;dns:0.000;tcp:0.038;ssl:0.086;total:1.016 https://idp.incommonfederation.org/idp/profile/SAML2/Redirect/SSO urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect https://idp.incommonfederation.org/idp/shibboleth https://incommon.org
+0 redirects:2;response:200;dns:0.000;tcp:0.038;ssl:0.088;total:0.737 https://idp.incommonfederation.org/idp/profile/SAML2/POST/SSO urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST https://idp.incommonfederation.org/idp/shibboleth https://incommon.org
+WARNING: get_sso_endpoint: entity has no SSO endpoint that supports the HTTP-POST-SimpleSign binding: https://idp.incommonfederation.org/idp/shibboleth
+0 redirects:2;response:200;dns:0.000;tcp:0.038;ssl:0.088;total:0.735 https://idp.incommonfederation.org/idp/profile/Shibboleth/SSO urn:mace:shibboleth:1.0:profiles:AuthnRequest https://idp.incommonfederation.org/idp/shibboleth https://incommon.org
 ```
 
-The ``-a`` option probes **all** browser-facing endpoints, including SAML1 endpoints.
+By default, the script probes **all** browser-facing endpoints, including SAML1 endpoints. Use the ``-b`` option to probe a single endpoint with a particular binding.
 
 See the inline help file for details: