diff --git a/docs/rakudo-nqp-and-pod-notes.md b/docs/rakudo-nqp-and-pod-notes.md
index 109b204e052..372191a630c 100644
--- a/docs/rakudo-nqp-and-pod-notes.md
+++ b/docs/rakudo-nqp-and-pod-notes.md
@@ -14,8 +14,12 @@
 + **DO use 'nqp::die'** - As opposed to '**say**', '**die**' does need to be qualified with '**nqp::**'.
   If used without the '**nqp::**' prefix, you sometimes may get a very unhelpful error message.
   
-+ **DO NOT use '$\<some-match-var>' inside a sub with a '$/' arg** - Use the full syntax for
++ **BE WARNED about '$\<some-match-var>' inside a sub with a '$/' arg** - Use the full syntax for
   a match variable ('**/$<some-match-var**') for more reliable (or at least self-documenting) results.
+  
++ **BE WARNED about '$\<a-match-var>+' versus '$\<a-match-var>\*\*1'** - The '+' will result in a concatenated object
+  while the '\*\*' form will result in an array.  Either form may be appropriate for the situation,
+  but proper handling will vary for each.
 
 + **BE WARNED about "return if (...)" statements** - Sometimes they  work and sometimes not. But the
   failure message is usually good enough to find the offending code.