diff --git a/toise/classification_efficiency.py b/toise/classification_efficiency.py
index c3473de..0b4b0bb 100644
--- a/toise/classification_efficiency.py
+++ b/toise/classification_efficiency.py
@@ -7,6 +7,7 @@
 from .util import data_dir
 import json
 import os
+import warnings
 
 
 def get_classification_efficiency(geometry="IceCube", spacing=125):
@@ -56,7 +57,14 @@ def get_classification_efficiency(geometry="IceCube", spacing=125):
         return ClassificationEfficiency.load(
             "icecube_doublecascade_efficiency.json", (6e4, 1e7)
         )
+    elif geometry == "Sunflower" and spacing == 240:
+        return ClassificationEfficiency.load(
+            "sparsecube_doublecascade_NL_efficiency.json", (6e4, 1e7)
+        )
     elif 240 <= spacing <= 260:
+        warnings.warn(
+            f"Falling back to SparseCube classification efficiency for {geometry=} and {spacing=}"
+        )
         return ClassificationEfficiency.load(
             "sparsecube_doublecascade_efficiency.json", (6e4, 1e7)
         )
@@ -93,6 +101,11 @@ def sigmoid(x, a, b, c, d, m):
         """
         return ((a - d) / (1 + (np.exp(b * np.log(x / 1e3) - c)) ** m)) + d
 
+    @staticmethod
+    def sigmoid_updated(x, L, x0, k, b):
+        y = (L) / (1 + np.exp(-k * (x - x0))) + b
+        return y
+
     @classmethod
     def load(cls, filename, energy_range=(0, np.inf)):
         if not filename.startswith("/"):
diff --git a/toise/data/cache/manifest.json b/toise/data/cache/manifest.json
index 4f54a84..7b47a91 100644
--- a/toise/data/cache/manifest.json
+++ b/toise/data/cache/manifest.json
@@ -254,5 +254,21 @@
  "toise.externals.nuFATE.crosssections.differential.5.n.NC": {
   "expires": null,
   "filename": "toise.externals.nuFATE.crosssections.differential.5.n.NC.fits"
+ },
+ "toise.figures.diffuse.flavor.source_profile.astro_00_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None": {
+  "filename": "toise.figures.diffuse.flavor.source_profile.astro_00_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None.pkl.gz",
+  "expires": 1716465797.961588
+ },
+ "toise.figures.diffuse.flavor.source_profile.astro_01_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None": {
+  "filename": "toise.figures.diffuse.flavor.source_profile.astro_01_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None.pkl.gz",
+  "expires": 1716465868.364501
+ },
+ "toise.figures.diffuse.flavor.profile.astro_00_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None": {
+  "filename": "toise.figures.diffuse.flavor.profile.astro_00_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None.pkl.gz",
+  "expires": 1716466794.651093
+ },
+ "toise.figures.diffuse.flavor.profile.astro_01_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None": {
+  "filename": "toise.figures.diffuse.flavor.profile.astro_01_(('Gen2-InIce', 10.0), ('IceCube', 15.0))_{'emu_crit': 2000000.0}_100_None.pkl.gz",
+  "expires": 1716466868.466432
  }
 }
\ No newline at end of file
diff --git a/toise/data/selection_efficiency/sparsecube_doublecascade_NL_efficiency.json b/toise/data/selection_efficiency/sparsecube_doublecascade_NL_efficiency.json
new file mode 100644
index 0000000..f701c34
--- /dev/null
+++ b/toise/data/selection_efficiency/sparsecube_doublecascade_NL_efficiency.json
@@ -0,0 +1,87 @@
+{
+  "nue": {
+    "cascades": [
+      "logpoly",
+      [
+        211.08562334,
+        -40.24929496,
+        2.79896331
+      ]
+    ],
+    "starting_tracks": [
+      "logpoly",
+      [
+        -251.7835465,
+        117.63929112,
+        -16.83418227,
+        0.80111839
+      ]
+    ],
+    "double_cascades": [
+      "logpoly",
+      [
+        -63.83109032,
+        25.42909962,
+        -2.99231194,
+        0.12524589
+      ]
+    ]
+  },
+  "numu": {
+    "cascades": [
+      "logpoly",
+      [
+        -65.51433012,
+        27.46710645,
+        -2.25716057
+      ]
+    ],
+    "starting_tracks": [
+      "logpoly",
+      [
+        454.6150171,
+        -167.52327515,
+        24.56073741,
+        -1.18053345
+      ]
+    ],
+    "double_cascades": [
+      "logpoly",
+      [
+        -139.05608984,
+        61.46406983,
+        -8.76234556,
+        0.41181181
+      ]
+    ]
+  },
+  "nutau": {
+    "cascades": [
+      "sigmoid_updated",
+      [
+        42.7778948,
+        5.83830578,
+        -3.54578634,
+        30.37678602
+      ]
+    ],
+    "starting_tracks": [
+      "sigmoid_updated",
+      [
+        30.57598051,
+        6.17941948,
+        3.58992146,
+        21.87159307
+      ]
+    ],
+    "double_cascades": [
+      "logpoly",
+      [
+        -418.10648932,
+        159.28011746,
+        -17.77677905,
+        0.5634169
+      ]
+    ]
+  }
+}
\ No newline at end of file