diff --git a/photobook.cls b/photobook.cls
index 56cc01e..7ba698f 100644
--- a/photobook.cls
+++ b/photobook.cls
@@ -3046,13 +3046,16 @@
 %
 % NOTE: these should be used in a box.
 % NOTE: these are centered in origin.
-% XXX these can affect the items after -- need to encapsulate...
-% XXX something's odd with these -- when \foldmarksize is <6mm the bottom falls apart...
+% XXX these can affect the items after -- need to encapsulate better + test...
+% XXX something's odd with these -- when \foldmarksize is <6mm the bottom 
+%		fold mark gets messed up...
+% XXX do we need to make centering block size dependant on \foldmarksize 
+%		or are the two independent??? (test)
 % XXX doc...
 \newcommand\foldinmark[1][0pt]{
 	\vspace{\dimexpr 0.5\foldmarksize + #1 \relax}%
 	\smash{\makebox[0pt][l]{%
-		% a size-agnostic centering...
+		% size-agnostic centering...
 		\hspace{-5mm}{\makebox[1cm][c]{%
 			\begin{tikzpicture}%
 				\draw[white, ultra thick] 
@@ -3073,7 +3076,7 @@
 \newcommand\foldoutmark[1][0pt]{
 	\vspace{\dimexpr 0.5\foldmarksize + #1 \relax}%
 	\smash{\makebox[0pt][l]{%
-		% a size-agnostic centering...
+		% size-agnostic centering...
 		\hspace{-5mm}{\makebox[1cm][c]{%
 			\begin{tikzpicture}%
 				\draw[white, ultra thick]