diff --git a/config.py b/config.py
index 32c24962f..b7b7c3397 100644
--- a/config.py
+++ b/config.py
@@ -32,7 +32,16 @@ gameDB = None
 # TODO: move back to pyfa.py main loop
 # We moved it here just to avoid rebuilding windows skeleton for now (any change to pyfa.py needs it)
 import logging
-logging.basicConfig()
+import logging.handlers
+
+format = '%(asctime)s %(name)-24s %(levelname)-8s %(message)s'
+logging.basicConfig(format=format, level=logging.DEBUG)
+handler = logging.handlers.RotatingFileHandler("log.txt", maxBytes=10000, backupCount=3)
+formatter = logging.Formatter(format)
+handler.setFormatter(formatter)
+logging.getLogger('').addHandler(handler)
+
+logging.info("Starting pyfa")
 
 def defPaths():
     global pyfaPath
diff --git a/eos/effectHandlerHelpers.py b/eos/effectHandlerHelpers.py
index a417fa041..c658cf0a9 100644
--- a/eos/effectHandlerHelpers.py
+++ b/eos/effectHandlerHelpers.py
@@ -20,6 +20,9 @@
 from sqlalchemy.orm.attributes import flag_modified
 import eos.db
 import eos.types
+import logging
+
+logger = logging.getLogger(__name__)
 
 class HandledList(list):
     def filteredItemPreAssign(self, filter, *args, **kwargs):
@@ -180,10 +183,12 @@ class HandledImplantBoosterList(HandledList):
         if thing.isInvalid:
             HandledList.append(self, thing)
             self.remove(thing)
+            return
 
         # if needed, remove booster that was occupying slot
         oldObj = next((m for m in self if m.slot == thing.slot), None)
         if oldObj:
+            logging.info("Slot %d occupied with %s, replacing with %s", thing.slot, oldObj.item.name, thing.item.name)
             self.remove(oldObj)
 
         HandledList.append(self, thing)
@@ -195,6 +200,7 @@ class HandledProjectedModList(HandledList):
             # rows and relationships in database are removed as well
             HandledList.append(self, proj)
             self.remove(proj)
+            return
 
         proj.projected = True
         isSystemEffect = proj.item.group.name == "Effect Beacon"
@@ -204,6 +210,7 @@ class HandledProjectedModList(HandledList):
             oldEffect = next((m for m in self if m.item.group.name == "Effect Beacon"), None)
 
             if oldEffect:
+                logging.info("System effect occupied with %s, replacing with %s", oldEffect.item.name, proj.item.name)
                 self.remove(oldEffect)
 
         HandledList.append(self, proj)