diff --git a/python/sdk/jit_proxy/jit_proxy_client.py b/python/sdk/jit_proxy/jit_proxy_client.py
index 79d90b95..d6d2e686 100644
--- a/python/sdk/jit_proxy/jit_proxy_client.py
+++ b/python/sdk/jit_proxy/jit_proxy_client.py
@@ -162,5 +162,5 @@ def get_post_only(self, post_only: PostOnlyParams):
             return self.program.type["PostOnlyParam"].MustPostOnly()
         elif is_variant(post_only, "TryPostOnly"):
             return self.program.type["PostOnlyParam"].TryPostOnly()
-        else:
-            return getattr(self.program.type["PostOnlyParam"], 'None')()
+        elif is_variant(post_only, "Slide"):
+            return self.program.type["PostOnlyParam"].Slide()
diff --git a/python/sdk/jit_proxy/jitter/jitter_shotgun.py b/python/sdk/jit_proxy/jitter/jitter_shotgun.py
index 21b0df03..1dd219b8 100644
--- a/python/sdk/jit_proxy/jitter/jitter_shotgun.py
+++ b/python/sdk/jit_proxy/jitter/jitter_shotgun.py
@@ -57,6 +57,9 @@ async def try_fill():
                 self.logger.info(f"Trying to fill {order_sig} -> Attempt: {i + 1}")
 
                 try:
+                    if params.max_position == 0 and params.min_position == 0:
+                        break
+            
                     sig = await self.jit_proxy_client.jit(
                         JitIxParams(
                             taker_key,
@@ -70,7 +73,7 @@ async def try_fill():
                             params.price_type,
                             referrer_info,
                             params.sub_account_id,
-                            PostOnlyParams.MustPostOnly(),
+                            PostOnlyParams.TryPostOnly(),
                         )
                     )
 
diff --git a/python/sdk/jit_proxy/jitter/jitter_sniper.py b/python/sdk/jit_proxy/jitter/jitter_sniper.py
index 0f469a47..57f9e88f 100644
--- a/python/sdk/jit_proxy/jitter/jitter_sniper.py
+++ b/python/sdk/jit_proxy/jitter/jitter_sniper.py
@@ -176,6 +176,9 @@ async def try_fill():
 
             for _ in range(3):
                 try:
+                    if params.max_position == 0 and params.min_position == 0:
+                        break
+            
                     tx_sig_and_slot = await self.jit_proxy_client.jit(
                         {
                             taker_key,
@@ -189,7 +192,7 @@ async def try_fill():
                             params.price_type,
                             referrer_info,
                             params.sub_account_id,
-                            PostOnlyParams.MustPostOnly(),
+                            PostOnlyParams.TryPostOnly(),
                         }
                     )