diff --git a/GPU/Software/GEMath.cpp b/GPU/Software/GEMath.cpp
index dda4ee9762..43b0c93378 100644
--- a/GPU/Software/GEMath.cpp
+++ b/GPU/Software/GEMath.cpp
@@ -152,7 +152,7 @@ static const GESetupRecipSegment geSetupRecip[256] = {
 	{ 7669584, -213 }, { 7642288, -212 }, { 7615184, -210 }, { 7588272, -209 },
 	{ 7561552, -208 }, { 7535024, -206 }, { 7508672, -205 }, { 7482512, -203 },
 	{ 7456528, -202 }, { 7430736, -200 }, { 7405104, -199 }, { 7379664, -198 },
-	{ 7354384, -196 }, { 7329280, -195 }, { 7304352, -194 }, { 7279552, -192 },
+	{ 7354384, -196 }, { 7329280, -195 }, { 7304352, -194 }, { 7279600, -192 },
 	{ 7255008, -191 }, { 7230576, -190 }, { 7206320, -188 }, { 7182208, -187 },
 	{ 7158272, -186 }, { 7134496, -185 }, { 7110864, -183 }, { 7087392, -182 },
 	{ 7064080, -181 }, { 7040928, -180 }, { 7017920, -179 }, { 6995056, -178 },
@@ -183,7 +183,7 @@ static const GESetupRecipSegment geSetupRecip[256] = {
 	{ 5315552, -102 }, { 5302416, -102 }, { 5289360, -101 }, { 5276368, -101 },
 	{ 5263440, -100 }, { 5250560, -100 }, { 5237760, -99 }, { 5225008, -99 },
 	{ 5212336, -98 }, { 5199712, -98 }, { 5187152, -97 }, { 5174656, -97 },
-	{ 5162208, -96 }, { 5149840, -96 }, { 5137504, -96 }, { 5125248, -95 },
+	{ 5162208, -96 }, { 5149840, -96 }, { 5137520, -96 }, { 5125248, -95 },
 	{ 5113056, -95 }, { 5100896, -94 }, { 5088816, -94 }, { 5076784, -93 },
 	{ 5064816, -93 }, { 5052896, -92 }, { 5041040, -92 }, { 5029232, -92 },
 	{ 5017472, -91 }, { 5005776, -91 }, { 4994144, -90 }, { 4982560, -90 },
@@ -206,9 +206,12 @@ static const GESetupRecipSegment geSetupRecip[256] = {
 	{ 4329600, -68 }, { 4320880, -67 }, { 4312208, -67 }, { 4303568, -67 },
 	{ 4294960, -67 }, { 4286384, -66 }, { 4277840, -66 }, { 4269344, -66 },
 	{ 4260880, -66 }, { 4252432, -65 }, { 4244032, -65 }, { 4235664, -65 },
-	{ 4227328, -65 }, { 4219008, -64 }, { 4210752, -64 }, { 4202496, -64 },
+	{ 4227328, -65 }, { 4219024, -64 }, { 4210752, -64 }, { 4202512, -64 },
 };
 
+// Nearly every K is floor(2^39 / (65536 + 256 i) / 16) * 16, the start of segment i in 1/8ths. The table was fit
+// to probe data; segments it left loose (39, 161, 162, 253, 255) use that formula, which games confirmed for 39
+// and 161. 105 and 106 differ from it, measured.
 int64_t GESetupRecip(uint64_t absDet, int *e) {
 	const uint32_t hi = (uint32_t)(absDet >> 32);
 	const int ex = hi ? 63 - (int)clz32_nonzero(hi) : 31 - (int)clz32_nonzero((uint32_t)absDet);
diff --git a/unittest/TestGEMath.cpp b/unittest/TestGEMath.cpp
index bd8fcf5ed3..34dc48a8f8 100644
--- a/unittest/TestGEMath.cpp
+++ b/unittest/TestGEMath.cpp
@@ -128,6 +128,8 @@ static bool TestGESetupRecip() {
 	// exp54's Gouraud triangle (det 854491) needs at least 40211 here; exp39 and exp41 bound it from above.
 	int e = 0;
 	EXPECT_EQ_INT(GESetupRecip(65536 + 41275, &e), 40211);
+	// Blade Dancer's large triangle (det 9668772) needs at least 56859 for its depth (frame dump, index 10001).
+	EXPECT_EQ_INT(GESetupRecip(9668772, &e), 56859);
 	return true;
 }