diff --git a/aprsd/packets/packet_list.py b/aprsd/packets/packet_list.py
index f492797..1ed2ec6 100644
--- a/aprsd/packets/packet_list.py
+++ b/aprsd/packets/packet_list.py
@@ -67,10 +67,6 @@ class PacketList(objectstore.ObjectStoreMixin):
     def copy(self):
         return self.data.copy()
 
-    @wrapt.synchronized(lock)
-    def set_maxlen(self, maxlen):
-        self.maxlen = maxlen
-
     @wrapt.synchronized(lock)
     def find(self, packet):
         return self.data["packets"][packet.key]
diff --git a/aprsd/stats/__init__.py b/aprsd/stats/__init__.py
index 44602fd..759698a 100644
--- a/aprsd/stats/__init__.py
+++ b/aprsd/stats/__init__.py
@@ -9,12 +9,12 @@ from aprsd.threads import aprsd
 # Create the collector and register all the objects
 # that APRSD has that implement the stats protocol
 stats_collector = collector.Collector()
-stats_collector.register_producer(app.APRSDStats())
-stats_collector.register_producer(packet_list.PacketList())
-stats_collector.register_producer(watch_list.WatchList())
-stats_collector.register_producer(tracker.PacketTrack())
-stats_collector.register_producer(plugin.PluginManager())
-stats_collector.register_producer(aprsd.APRSDThreadList())
-stats_collector.register_producer(email.EmailStats())
-stats_collector.register_producer(aprs_client.APRSClientStats())
-stats_collector.register_producer(seen_list.SeenList())
+stats_collector.register_producer(app.APRSDStats)
+stats_collector.register_producer(packet_list.PacketList)
+stats_collector.register_producer(watch_list.WatchList)
+stats_collector.register_producer(tracker.PacketTrack)
+stats_collector.register_producer(plugin.PluginManager)
+stats_collector.register_producer(aprsd.APRSDThreadList)
+stats_collector.register_producer(email.EmailStats)
+stats_collector.register_producer(aprs_client.APRSClientStats)
+stats_collector.register_producer(seen_list.SeenList)
diff --git a/aprsd/stats/collector.py b/aprsd/stats/collector.py
index c58b242..3325669 100644
--- a/aprsd/stats/collector.py
+++ b/aprsd/stats/collector.py
@@ -1,8 +1,9 @@
-from typing import Protocol
+from typing import Callable, Protocol, runtime_checkable
 
 from aprsd.utils import singleton
 
 
+@runtime_checkable
 class StatsProducer(Protocol):
     """The StatsProducer protocol is used to define the interface for collecting stats."""
     def stats(self, serializeable=False) -> dict:
@@ -14,17 +15,17 @@ class StatsProducer(Protocol):
 class Collector:
     """The Collector class is used to collect stats from multiple StatsProducer instances."""
     def __init__(self):
-        self.producers: dict[str, StatsProducer] = {}
+        self.producers: list[Callable] = []
 
     def collect(self, serializable=False) -> dict:
         stats = {}
-        for name, producer in self.producers.items():
-            # No need to put in empty stats
-            tmp_stats = producer.stats(serializable=serializable)
-            if tmp_stats:
-                stats[name] = tmp_stats
+        for name in self.producers:
+            cls = name()
+            if isinstance(cls, StatsProducer):
+                stats[cls.__class__.__name__] = cls.stats(serializable=serializable)
+            else:
+                raise TypeError(f"{cls} is not an instance of StatsProducer")
         return stats
 
-    def register_producer(self, producer: StatsProducer):
-        name = producer.__class__.__name__
-        self.producers[name] = producer
+    def register_producer(self, producer_name: Callable):
+        self.producers.append(producer_name)