diff --git a/zipline/core/devsimulator.py b/zipline/core/devsimulator.py
index 85ddc44e..ab7492fb 100644
--- a/zipline/core/devsimulator.py
+++ b/zipline/core/devsimulator.py
@@ -3,9 +3,18 @@ Simulator hosts all the components necessary to execute a simluation.
 See :py:method""
 """
 
+import logbook
 import threading
 from zipline.core.simulatorref import SimulatorBase
 
+log = logbook.Logger('Dev Simulator')
+
+DEPRECATION_WARNING = """
+WARNING WARNING WARNING
+THE DEVSIMULATOR IS DEPRECATED, IT WILL NOT BEHAVE LIKE ANY OTHER
+SYSTEM USED IN TESTS OR IN PRODUCTION
+"""
+
 class AddressAllocator(object):
     """
     Produces a iterator of 10000 sockets to allocate as needed.
@@ -38,6 +47,8 @@ class Simulator(SimulatorBase):
         self.subthreads = []
         self.running = False
 
+        log.warn(DEPRECATION_WARNING)
+
     @property
     def get_id(self):
         return 'Simple Simulator'
diff --git a/zipline/optimize/factory.py b/zipline/optimize/factory.py
index 4aa9abfb..153f1d57 100644
--- a/zipline/optimize/factory.py
+++ b/zipline/optimize/factory.py
@@ -128,6 +128,7 @@ def create_predictable_zipline(config, offset=0, simulate=True):
     config['trade_source'] = source
     config['environment'] = trading_environment
     config['simulation_style'] = SIMULATION_STYLE.FIXED_SLIPPAGE
+    config['devel'] = True
 
     zipline = SimulatedTrading.create_test_zipline(**config)