diff --git a/hub/instruction_handling/copy/specifics/codecopy.tex b/hub/instruction_handling/copy/specifics/codecopy.tex
index 678eb74..4ba8cb7 100644
--- a/hub/instruction_handling/copy/specifics/codecopy.tex
+++ b/hub/instruction_handling/copy/specifics/codecopy.tex
@@ -79,15 +79,20 @@
 				We may nonetheless include some ``sanity check'' constraints labeled by (\sanityCheck) to make the intent explicit:
 				\[
 					\left\{ \begin{array}{lcll}
-						\accDeploymentNumber   _{i + \locCopyCurrentAccountRow} & = & \cnCodeDepNum       _{i + \locCopyCurrentContextRow} & (\sanityCheck)              \\
-						\accDeploymentStatus   _{i + \locCopyCurrentAccountRow} & = & \cnCodeDepStatus    _{i + \locCopyCurrentContextRow} & (\sanityCheck)              \\
-						\accCfi                _{i + \locCopyCurrentAccountRow} & = & \cnCodeCfi          _{i + \locCopyCurrentContextRow} & (\sanityCheck)              \\
-						\accCfi                _{i + \locCopyCurrentAccountRow} & = & \cfi_{i}                                             & (\sanityCheck) \vspace{2mm} \\
-						\accRomLexFlag         _{i + \locCopyCurrentAccountRow} & = & \rOne                                                & (\sanityCheck) ~ (\trash)   \\
+						\accDeploymentNumber          _{i + \locCopyCurrentAccountRow} & = & \cnCodeDepNum       _{i + \locCopyCurrentContextRow} & (\sanityCheck)              \\
+						\accDeploymentStatus          _{i + \locCopyCurrentAccountRow} & = & \cnCodeDepStatus    _{i + \locCopyCurrentContextRow} & (\sanityCheck)              \\
+						\accCfi                       _{i + \locCopyCurrentAccountRow} & = & \cnCodeCfi          _{i + \locCopyCurrentContextRow} & (\sanityCheck)              \\
+						\accCfi                       _{i + \locCopyCurrentAccountRow} & = & \cfi_{i}                                             & (\sanityCheck) \vspace{2mm} \\
+						\multicolumn{3}{l}{\accRetrieveCodeFragmentIndex  {i} {\locCopyCurrentAccountRow}}                                        & (\sanityCheck)              \\
 					\end{array} \right.
 				\]
 				These constraints confront \textbf{account data} with \textbf{context data}.
 				One constraint confronts \textbf{account data} with \textbf{shared data}.
 				Note furthermore that turning on the \accRomLexFlag{} also leads to a confrontation between \textbf{account data} and \romMod{} module data.
+
+				\saNote{}
+				If one wants to implement these ``sanity check'' constraints,
+				in particular that involving $\accCfi$, on \textbf{must} force $\accCfi$ to be the right one one.
+				For this it is \textbf{necessary} that one turn on the relevant $\accRomLexFlag$ via $\accRetrieveCodeFragmentIndex  {i} {\locCopyCurrentAccountRow}$.
 		\end{description}
 \end{description}
diff --git a/hub/instruction_handling/copy/specifics/extcodecopy.tex b/hub/instruction_handling/copy/specifics/extcodecopy.tex
index d3b6de4..d17a698 100644
--- a/hub/instruction_handling/copy/specifics/extcodecopy.tex
+++ b/hub/instruction_handling/copy/specifics/extcodecopy.tex
@@ -109,7 +109,7 @@
 						{i}{\locCopyOutsideAccountRowFirst}
 						{\locAddressParamHi}
 						{\locAddressParamLo}} \\
-						\accRomLexFlag    _{i + 2} & = & \locTriggerCfi   \vspace{2mm} \\
+						\accRomLexFlag    _{i + \locCopyOutsideAccountRowFirst} & = & \locTriggerCfi   \vspace{2mm} \\
 						\multicolumn{4}{l}{\accSameBalance                    {i}{\locCopyOutsideAccountRowFirst}}    \\
 						\multicolumn{4}{l}{\accSameNonce                      {i}{\locCopyOutsideAccountRowFirst}}    \\
 						\multicolumn{4}{l}{\accSameCode                       {i}{\locCopyOutsideAccountRowFirst}}    \\
diff --git a/hub/instruction_handling/halt/return/specialized/deployment_nontrivial.tex b/hub/instruction_handling/halt/return/specialized/deployment_nontrivial.tex
index 440622b..a8b3696 100644
--- a/hub/instruction_handling/halt/return/specialized/deployment_nontrivial.tex
+++ b/hub/instruction_handling/halt/return/specialized/deployment_nontrivial.tex
@@ -89,7 +89,8 @@
 				\accDeploymentStatus\new                               _{i + \locNonemptyDeploymentFirstAccountRowOffset}   & = & 0 \vspace{2mm}          \\
 				\multicolumn{3}{l}{\accSameWarmth                       {i} {\locNonemptyDeploymentFirstAccountRowOffset}} \\
 				\multicolumn{3}{l}{\accSameMarkedForSelfdestructFlag    {i} {\locNonemptyDeploymentFirstAccountRowOffset}} \\
-				\accRomLexFlag                                         _{i + \locNonemptyDeploymentFirstAccountRowOffset}   & = & \rOne                   \\
+				\multicolumn{3}{l}{\accRetrieveCodeFragmentIndex        {i} {\locNonemptyDeploymentFirstAccountRowOffset}} \\
+				% \accRomLexFlag                                         _{i + \locNonemptyDeploymentFirstAccountRowOffset}   & = & \rOne                   \\
 				\accTrmFlag                                            _{i + \locNonemptyDeploymentFirstAccountRowOffset}   & = & \gZero                  \\
 				\multicolumn{3}{l}{
 					\standardDomSubStamps {
diff --git a/pkg/env.sty b/pkg/env.sty
index 88f994a..7b7576d 100644
--- a/pkg/env.sty
+++ b/pkg/env.sty
@@ -244,8 +244,8 @@
 \newcommand{\accTrimAddress}                             [4]       {\accountSignifier\texttt{trimAddress}                _{#1}
 \left[ \begin{array}{ll}
 \utt{Rel. row offset:} & #2 \\
-\utt{Raw address (high part):} & #3 \\
-\utt{Raw address (low part):} & #4 \\
+\utt{Raw address (hi part):} & #3 \\
+\utt{Raw address (lo part):} & #4 \\
 \end{array} \right]}
 
 \newcommand{\accIsntPrecompile}                          [2]       {\accountSignifier\texttt{isntPrecompile}             _{#1}  \big[ #2 \big]                }