diff --git a/advlabdb/adminModelViews.py b/advlabdb/adminModelViews.py
index 39c22ef..289b070 100644
--- a/advlabdb/adminModelViews.py
+++ b/advlabdb/adminModelViews.py
@@ -16,7 +16,6 @@ from wtforms import Form
 from wtforms.fields import (
     BooleanField,
     DateField,
-    DecimalField,
     IntegerField,
     RadioField,
     SelectField,
@@ -27,6 +26,7 @@ from wtforms.validators import URL, DataRequired, Email, NumberRange, Optional
 from advlabdb import adminSpace, app, assistantSpace, db, user_datastore
 from advlabdb.configUtils import getConfig
 from advlabdb.customClasses import (
+    CustomDecimalFieldFactory,
     CustomIdEndpointLinkRowAction,
     SecureAdminBaseView,
     SecureAdminModelView,
@@ -696,21 +696,21 @@ class SemesterExperimentView(SecureAdminModelView):
             blank_text="-",
         )
 
-        oral_weighting = DecimalField(
+        oral_weighting = CustomDecimalFieldFactory(0.01)(
             "Oral weighting",
             validators=[DataRequired(), NumberRange(min=0, max=1)],
             default=0.5,
             description="Between 0 and 1",
             places=2,
         )
-        protocol_weighting = DecimalField(
+        protocol_weighting = CustomDecimalFieldFactory(0.01)(
             "Protocol weighting",
             validators=[DataRequired(), NumberRange(min=0, max=1)],
             default=0.5,
             description="Between 0 and 1. Oral and protocol weightings have to add to 1! Both are rounded to 2 decimal digits.",
             places=2,
         )
-        final_weighting = DecimalField(
+        final_weighting = CustomDecimalFieldFactory(0.01)(
             "Final weighting",
             validators=[DataRequired(), NumberRange(min=0, max=1)],
             default=1.0,
@@ -772,10 +772,10 @@ class SemesterExperimentView(SecureAdminModelView):
         model.checkAndRoundWeightings()
 
     def update_model(self, form, model):
-        weightingsChanged = not (
-            form.oral_weighting.data == model.oral_weighting
-            and form.protocol_weighting.data == model.protocol_weighting
-            and form.final_weighting.data == model.final_weighting
+        weightingsChanged = (
+            form.oral_weighting.data != model.oral_weighting
+            or form.protocol_weighting.data != model.protocol_weighting
+            or form.final_weighting.data != model.final_weighting
         )
 
         updateSuccessful = super().update_model(form, model)
diff --git a/advlabdb/customClasses.py b/advlabdb/customClasses.py
index 04d977b..3c5c970 100644
--- a/advlabdb/customClasses.py
+++ b/advlabdb/customClasses.py
@@ -5,6 +5,8 @@ from flask_admin.model.helpers import get_mdict_item_or_list
 from flask_admin.model.template import EndpointLinkRowAction
 from flask_security import current_user
 from sqlalchemy import and_
+from wtforms.fields import DecimalField
+from wtforms.widgets import NumberInput
 
 from advlabdb.exceptions import DataBaseException, ModelViewException
 from advlabdb.models import (
@@ -269,3 +271,10 @@ class CustomIdEndpointLinkRowAction(EndpointLinkRowAction):
 
     def render(self, context, row_id, row):
         return super().render(context, self.customId(row), row)
+
+
+def CustomDecimalFieldFactory(step):
+    class CustomDecimalField(DecimalField):
+        widget = NumberInput(step=step)
+
+    return CustomDecimalField