diff --git a/gr-jay/lib/peak_detect_impl.cc b/gr-jay/lib/peak_detect_impl.cc
index 07aa674..7c4f7ff 100644
--- a/gr-jay/lib/peak_detect_impl.cc
+++ b/gr-jay/lib/peak_detect_impl.cc
@@ -341,10 +341,24 @@ namespace gr {
 					.half_width = (float)pbh,
 					.height_rel = m_pXd[pos],
 					.height_abs = m_pX[pos],
+					.isConfirmed = true,
 				};
 				
-				m_peakList.push_back(peak);
-				m_peak_id++;
+				// Intersection check
+				bool intersection = false;
+				for (int i = 0; i < m_peakList.size(); i++)
+				{
+					if (m_peakList[i].isInRange(peak))
+					{
+						intersection = true;
+					}
+				}
+				
+				if (!intersection)
+				{
+					m_peakList.push_back(peak);
+					m_peak_id++;
+				}
 			}
 			
 			// -----------------------------------------------------------------
@@ -354,14 +368,13 @@ namespace gr {
 			for (int i = 0; i < m_peakList.size(); i++)
 			{
 				Peak &peak = m_peakList[i];
-				
+		
 				bool found = false;
 				for (int j=0; j < m_peakHistory.size(); j++)
 				{
 					if (m_peakHistory[j].isInRange(peak))
 					{
-						Peak p = m_peakHistory[j].update(peak);
-						temp.push_back(p);
+						temp.push_back(m_peakHistory[j].update(peak));
 						found = true;
 						break;
 					}
@@ -369,9 +382,21 @@ namespace gr {
 				
 				if (!found)
 				{
+					peak.isConfirmed = 1;
 					temp.push_back(peak);
+					fprintf(stderr, "New Peak #%u at %d\n", (int)peak.id, (int)peak.pos);
 				}
 			}
+			
+			for (int j=0; j < m_peakHistory.size(); j++)
+			{
+				Peak &peak = m_peakHistory[j];
+				if (!peak.isConfirmed)
+				{
+					fprintf(stderr, "Lost Peak #%u at %d\n", (int)peak.id, (int)peak.pos);
+				}
+			}
+			m_peakHistory.clear();
 			m_peakHistory = temp;
 			
 			// -----------------------------------------------------------------
@@ -412,6 +437,7 @@ namespace gr {
 				pmt::pmt_t tag_key = pmt::string_to_symbol(std::string("pos_id_") + std::to_string(peak.id));
 				pmt::pmt_t tag_value = pmt::from_long(peak.pos);
 				add_item_tag(DATA, nitems_written(DATA) + k, tag_key, tag_value, m_tag_id);
+				peak.isConfirmed = false;
 			}
 
 			m_frameCount++;
diff --git a/gr-jay/lib/peak_detect_impl.h b/gr-jay/lib/peak_detect_impl.h
index 5925733..1b57db8 100644
--- a/gr-jay/lib/peak_detect_impl.h
+++ b/gr-jay/lib/peak_detect_impl.h
@@ -35,6 +35,7 @@ namespace jay {
 			float half_width;
 			float height_rel;
 			float height_abs;
+			bool isConfirmed;
 			
 			bool isInRange(const Peak &other)
 			{
@@ -49,7 +50,7 @@ namespace jay {
 				half_width = alpha*half_width + beta*other.half_width;
 				height_rel = std::max(height_rel, other.height_rel);
 				height_abs = std::max(height_abs, other.height_abs);
-				
+				isConfirmed = true;
 				return *this;
 			}
 		};