diff --git a/neuron/presynapse.md b/neuron/presynapse.md
index e3a10a6..1128954 100644
--- a/neuron/presynapse.md
+++ b/neuron/presynapse.md
@@ -418,13 +418,13 @@ Each tier buys time for the one below it to respond. When all three are depleted
 
 #### Ca2+TracesClearance: int: sec
 
-Qui facciamo un flush di CaTraceX.
+Qui facciamo un flush di CaTraceX. Deve essere fatto a valle del tuning.
 
 ```Gen
 interacting: Ca2+TracesClearance
   contained_by: PRESYNAPSE
 
-  in_context: NOT AP_ctx
+  in_context: NOT TunPossible_ctx
   rf: ( active: 30x ) # Slow
 
   hypothesis: NOT (CaTraceHigh empty)