--- AnyEvent-GPSD/GPSD.pm	2008/07/25 13:22:18	1.5
+++ AnyEvent-GPSD/GPSD.pm	2008/07/25 13:26:06	1.6
@@ -437,7 +437,12 @@
 
 Multiplies all times by the given factor. Values < 1 make the log replay
 faster, values > 1 slower. Note that the frequency of fixes will not be
-increased, o stretch factors > 1 do not work well. =back
+increased, o stretch factors > 1 do not work well.
+
+A stretch factor of zero is not allowed, but if you want to replay a log
+instantly you may speicfy a very low value (e.g. 1e-10).
+
+=back
 
 =cut