diff --git a/src/PTQ/PTQ.cpp b/src/PTQ/PTQ.cpp
index e74ac8f0058b84a13bd06a4b886297ebd1caedbc..11bf5a30c167f929072cd426b7ce7f756055e9a1 100644
--- a/src/PTQ/PTQ.cpp
+++ b/src/PTQ/PTQ.cpp
@@ -58,21 +58,20 @@ bool isNotQuantized(std::shared_ptr<Node> node)
 {
     return (notQuantizedNodeTypes.find(node->type()) != notQuantizedNodeTypes.end());
 }
+
+std::shared_ptr<Aidge::Node> getFirstNode(std::shared_ptr<GraphView> graphView)
+{
+    return graphView->getOrderedInputs()[0].first;
+}
 void clearGraphViewInputNodes(std::shared_ptr<GraphView> graphView,DataType targetType)
 {
     for (std::shared_ptr<Aidge::Node> inputNode: graphView->inputNodes())
     {
-        if(expandMetaOp(inputNode)) //Reset Tensor does not work on MetaOps
-        {
-            inputNode = std::static_pointer_cast<MetaOperator_Op>(inputNode->getOperator())->getMicroGraph()->getOrderedNodes()[0];
-        }
         for (Aidge::IOIndex_t index = inputNode->getFirstFreeDataInput();index < inputNode->getNbFreeDataInputs(); index++)
         {
-            std::shared_ptr<OperatorTensor> firstOperatorTensor = std::static_pointer_cast<OperatorTensor>(inputNode->getOperator());
-            firstOperatorTensor->resetInput(inputNode->getFirstFreeDataInput());
+            inputNode->getOperator()->resetInput(index);
         }
     }
-    
 }
 bool checkArchitecture(std::shared_ptr<GraphView> graphView)
 {
@@ -564,7 +563,7 @@ void normalizeParameters(std::shared_ptr<GraphView> graphView)
 
     // ITERATE OVER THE GRAPH /////////////////////////////////////////////////
 
-    std::shared_ptr<Node> firstNode = graphView->getOrderedInputs()[0].first;
+    std::shared_ptr<Node> firstNode =getFirstNode(graphView);
 
     for (std::shared_ptr<Node> node : nodeVector)
     {
@@ -762,7 +761,7 @@ std::unordered_map<std::shared_ptr<Node>, double> computeRanges(std::shared_ptr<
 
 void normalizeActivations(std::shared_ptr<GraphView> graphView, std::unordered_map<std::shared_ptr<Node>, double> valueRanges)
 {
-    std::shared_ptr<Node> firstNode =  graphView->getOrderedInputs()[0].first;
+    std::shared_ptr<Node> firstNode =  getFirstNode(graphView);
 
     // CREATE THE ACCUMULATED RATIO MAP ///////////////////////////////////////
 
@@ -856,7 +855,7 @@ void normalizeActivations(std::shared_ptr<GraphView> graphView, std::unordered_m
 
 std::unordered_map<std::shared_ptr<Node>, std::pair<bool, bool>> computeSignMap(std::shared_ptr<GraphView> graphView, bool verbose)
 {
-    std::shared_ptr<Node> firstNode =  graphView->getOrderedInputs()[0].first;
+    std::shared_ptr<Node> firstNode =  getFirstNode(graphView);
 
     std::unordered_map<std::shared_ptr<Node>, std::pair<bool, bool>> signMap;
 
@@ -1291,6 +1290,7 @@ void quantizeNetwork(std::shared_ptr<GraphView> graphView,
         AIDGE_ASSERT(!noQuant,"Cannot cast operators with the noQuant (Fake Quantization) flag set to true!")
         Log::notice("Starting to cast operators into the desired type ...");
         castQuantizedGraph(graphView,targetType,singleShift,bitshiftRounding);
+        
         graphView->updateInputsOutputs();
         clearGraphViewInputNodes(graphView,targetType); //Convert all input tensors of the GV into targetType
     }