diff --git a/docs/refguide.xml b/docs/refguide.xml
index fa9169709..ed0718c09 100644
--- a/docs/refguide.xml
+++ b/docs/refguide.xml
@@ -3092,12 +3092,22 @@ between sending each probe.  <option>T1</option> and
 seconds, respectively, between probes.  <option>T3</option><indexterm><primary><literal>normal</literal> (<option>-T3</option>) timing template</primary></indexterm> is Nmap's
 default behavior, which includes parallelization.
 <option>-T4</option>
-does the equivalent of <option>--max-rtt-timeout 1250ms --min-rtt-timeout 100ms
---initial-rtt-timeout 500ms --max-retries 6</option> and sets the maximum TCP and SCTP scan delay
+does the equivalent of <option>
+  --max-rtt-timeout 1250ms
+  --min-rtt-timeout 100ms
+  --initial-rtt-timeout 500ms
+  --max-retries 6
+</option> and sets the maximum TCP and SCTP scan delay
 to 10ms.  <option>T5</option>
 does the equivalent of
-<option>--max-rtt-timeout 300ms --min-rtt-timeout 50ms
---initial-rtt-timeout 250ms --max-retries 2 --host-timeout 15m --script-timeout 10m --max-scan-delay</option> as well as
+<option>
+  --max-rtt-timeout 300ms
+  --min-rtt-timeout 50ms
+  --initial-rtt-timeout 250ms
+  --max-retries 2
+  --host-timeout 15m
+  --script-timeout 10m
+</option> as well as
 setting the maximum TCP and SCTP scan delay to 5ms.
 Maximum UDP scan delay is not set by <option>T4</option> or <option>T5</option>, but it can be set with the <option>--max-scan-delay</option> option.
 </para>
diff --git a/nmap.cc b/nmap.cc
index c3c2b37cb..213bbfd40 100644
--- a/nmap.cc
+++ b/nmap.cc
@@ -1338,13 +1338,13 @@ void parse_options(int argc, char **argv) {
       if (*optarg == '0' || (strcasecmp(optarg, "Paranoid") == 0)) {
         o.timing_level = 0;
         o.max_parallelism = 1;
-        o.scan_delay = 300000;
-        o.setInitialRttTimeout(300000);
+        o.scan_delay = 300000; // 5 minutes
+        o.setInitialRttTimeout(300000); // 5 minutes, also sets max-rtt-timeout
       } else if (*optarg == '1' || (strcasecmp(optarg, "Sneaky") == 0)) {
         o.timing_level = 1;
         o.max_parallelism = 1;
-        o.scan_delay = 15000;
-        o.setInitialRttTimeout(15000);
+        o.scan_delay = 15000; // 15 seconds
+        o.setInitialRttTimeout(15000); // 15 seconds, also sets max-rtt-timeout
       } else if (*optarg == '2' || (strcasecmp(optarg, "Polite") == 0)) {
         o.timing_level = 2;
         o.max_parallelism = 1;
@@ -1365,7 +1365,7 @@ void parse_options(int argc, char **argv) {
         o.setMinRttTimeout(50);
         o.setMaxRttTimeout(300);
         o.setInitialRttTimeout(250);
-        o.host_timeout = 900000;
+        o.host_timeout = 900000; // 15 minutes
         o.setMaxTCPScanDelay(5);
         o.setMaxSCTPScanDelay(5);
         // No call to setMaxUDPScanDelay because of rate-limiting and unreliability