diff --git a/crates/applications/stacked_cores/scripts/stacked_cores_40xx_db.py b/crates/applications/stacked_cores/scripts/stacked_cores_40xx_db.py
index 525a812..f959713 100755
--- a/crates/applications/stacked_cores/scripts/stacked_cores_40xx_db.py
+++ b/crates/applications/stacked_cores/scripts/stacked_cores_40xx_db.py
@@ -2600,6 +2600,24 @@ Piecewise(
 )
 """)
 
+set_meas("42-0.0004rad-9coupling-3_1_winding-2e10-drive", """
+Piecewise(
+    [
+        [ -17150,  -2787 ],  # -1.0
+        [ -16914,  -3077 ],  # -0.13
+        [ -16694,  -3287 ],  # -0.1
+        [ -16449,  -3506 ],  # -0.09
+        [ -15875,  -4060 ],  # -0.08
+        [ -13426,  -6648 ],  # -0.07
+        [  -9210, -10853 ],  # -0.06
+        [  -4953, -14268 ],  # -0.05
+        [   -695, -16397 ],  # -0.04
+        [  11016, -15700 ],  # 0.0
+        [  16936, -15322 ],  # 1.0
+    ]
+)
+""")
+
 set_meas("42-0.0004rad-6coupling-5_1_winding-1e10-drive", """
 Piecewise(
     [
diff --git a/crates/applications/stacked_cores/src/main.rs b/crates/applications/stacked_cores/src/main.rs
index ad88bf7..7000186 100644
--- a/crates/applications/stacked_cores/src/main.rs
+++ b/crates/applications/stacked_cores/src/main.rs
@@ -4263,10 +4263,6 @@ fn main() {
         for init_set in [
             &[
                 // custom regions to explore
-                -0.13,
-                -0.12,
-                -0.14,
-                -0.11,
             ][..],
             &[
                 // establish the domain/range
@@ -4276,16 +4272,16 @@ fn main() {
             ][..],
             &[
                 // establish the slope around the most likely stable/amplifying region
-                -0.20,
-                -0.10,
                 -0.05,
-                -0.15,
-                -0.30,
+                -0.10,
                  0.20,
                  0.05,
                  0.10,
                  0.15,
                  0.30,
+                -0.20,
+                -0.15,
+                -0.30,
                 -0.25,
             ][..],
             &[
@@ -4337,12 +4333,11 @@ fn main() {
             for (coupling_loops, s0_loops, s_major, cur_flt) in [
                 // TODO: (4,  3, um(400),  15e9),
                 // TODO: (2,  6, um(400),  15e10),
-                (9,  1, um(400),  2e10),
 
                 // (9,  1, um(400),  5e9),  // too low slope; verified geom
                 // (9,  1, um(400),  1e10), // slope dies too early; verified geom
                 // (9,  1, um(400),  12e9), // slope dies too early; verified geom
-                // (9,  1, um(400),  15e9), // slope dies too early
+                // (9,  1, um(400),  15e9), // slope dies too early; verified geom
                 // (6,  2, um(400),  15e9), // slope dies too early
                 // (6,  2, um(400),  1e10), // slope dies too early (0.24)
                 // (6,  2, um(400),  3e10), // slope dies too early (0.23)
@@ -4356,6 +4351,7 @@ fn main() {
                 (6,  2, um(400),  2e10), // VIABLE INVERTER (0.15, 0.30)
                 (4,  3, um(400),  2e10), // VIABLE INVERTER (0.22, 0.34)
                 (9,  1, um(400),  8e9),  // WEAK INVERTER (0.26, 0.31); verified gem
+                (9,  1, um(400),  2e10), // WEAK INVERTER (0.24, 0.26); verified geom
                 (4,  3, um(400),  3e10), // WEAK INVERTER (0.24, 0.26); slope dies off early
             ] {
                 for &init_flt in init_set {