diff --git a/shared-data/pipette/definitions/2/general/eight_channel/p1000/3_4.json b/shared-data/pipette/definitions/2/general/eight_channel/p1000/3_4.json
index cb7561cba26..1eb2478cf83 100644
--- a/shared-data/pipette/definitions/2/general/eight_channel/p1000/3_4.json
+++ b/shared-data/pipette/definitions/2/general/eight_channel/p1000/3_4.json
@@ -19,7 +19,7 @@
     "run": 1.0
   },
   "plungerPositionsConfigurations": {
-    "top": 0.0,
+    "top": 0.5,
     "bottom": 71.5,
     "blowout": 76.5,
     "drop": 92.5
diff --git a/shared-data/pipette/definitions/2/general/eight_channel/p50/3_4.json b/shared-data/pipette/definitions/2/general/eight_channel/p50/3_4.json
index 2e774291b88..50d177c5619 100644
--- a/shared-data/pipette/definitions/2/general/eight_channel/p50/3_4.json
+++ b/shared-data/pipette/definitions/2/general/eight_channel/p50/3_4.json
@@ -19,7 +19,7 @@
     "run": 1.0
   },
   "plungerPositionsConfigurations": {
-    "top": 0.0,
+    "top": 0.5,
     "bottom": 71.5,
     "blowout": 76.5,
     "drop": 92.5
diff --git a/shared-data/pipette/definitions/2/general/single_channel/p1000/3_4.json b/shared-data/pipette/definitions/2/general/single_channel/p1000/3_4.json
index 756e63bc1ae..07fcca44917 100644
--- a/shared-data/pipette/definitions/2/general/single_channel/p1000/3_4.json
+++ b/shared-data/pipette/definitions/2/general/single_channel/p1000/3_4.json
@@ -4,7 +4,7 @@
   "model": "p1000",
   "displayCategory": "GEN3",
   "pickUpTipConfigurations": {
-    "current": 0.25,
+    "current": 0.15,
     "presses": 1,
     "speed": 5,
     "increment": 0.0,
@@ -19,7 +19,7 @@
     "run": 1.0
   },
   "plungerPositionsConfigurations": {
-    "top": 0.0,
+    "top": 0.5,
     "bottom": 71.5,
     "blowout": 76.5,
     "drop": 90.5
diff --git a/shared-data/pipette/definitions/2/general/single_channel/p50/3_4.json b/shared-data/pipette/definitions/2/general/single_channel/p50/3_4.json
index 08cf0d2e38e..8011b23c6b3 100644
--- a/shared-data/pipette/definitions/2/general/single_channel/p50/3_4.json
+++ b/shared-data/pipette/definitions/2/general/single_channel/p50/3_4.json
@@ -19,7 +19,7 @@
     "run": 1.0
   },
   "plungerPositionsConfigurations": {
-    "top": 0.0,
+    "top": 0.5,
     "bottom": 71.5,
     "blowout": 76.5,
     "drop": 90.5