diff --git a/image_analysis/bragg_integration/ProfileIntegrate2D.cpp b/image_analysis/bragg_integration/ProfileIntegrate2D.cpp
index 39433081..29accbee 100644
--- a/image_analysis/bragg_integration/ProfileIntegrate2D.cpp
+++ b/image_analysis/bragg_integration/ProfileIntegrate2D.cpp
@@ -29,7 +29,8 @@ struct Rough {
 
 template<class T>
 Rough BoxSum(const T *image, size_t xpixel, size_t ypixel, int64_t special, int64_t saturation,
-             const Reflection &r, float r1_sq, float r2_sq, float r3_sq, float r3, float min_sigma_ratio) {
+             const Reflection &r, float r1_sq, float r2_sq, float r3_sq, float r3, float min_sigma_ratio,
+             bool apply_bkg_clip) {
     Rough out;
     const int64_t x0 = std::max<int64_t>(0, std::floor(r.predicted_x - r3 - 1.0));
     const int64_t x1 = std::min<int64_t>(xpixel - 1, std::ceil(r.predicted_x + r3 + 1.0));
@@ -64,7 +65,9 @@ Rough BoxSum(const T *image, size_t xpixel, size_t ypixel, int64_t special, int6
     // (or a neighbour) leaks into the annulus and biases the mean high, which over-subtracts and drives
     // the merged high-resolution intensities negative; rejecting pixels above mean + 3*sqrt(mean) removes
     // that contamination (and barely touches a clean Poisson background, where ~0.1% exceed the cut).
-    {
+    // Stills-only: on rotation (no bandwidth streak) it clips legitimate high background pixels and biases
+    // the mean low, slightly hurting weak (anomalous) intensities, so it is gated off there.
+    if (apply_bkg_clip) {
         const double thr = out.bkg + 3.0 * std::sqrt(std::max(out.bkg, 1.0));
         double s = 0.0;
         int n = 0;
@@ -95,6 +98,9 @@ std::vector<Reflection> ProfileIntegrateInternal(const DiffractionExperiment &ex
     const float r2 = settings.GetR2(), r2_sq = r2 * r2;
     const float r3 = settings.GetR3(), r3_sq = r3 * r3;
     const float min_sigma_ratio = settings.GetMinimumSigmaInRegardsToI();
+    // The background-ring sigma-clip de-biases bandwidth-streaked stills but can clip legitimate
+    // background on rotation (no streaks) and bias it low; gate it to stills (a bandwidth is set).
+    const bool apply_bkg_clip = experiment.GetBandwidthFWHM().value_or(0.0f) > 0.0f;
     const int R = static_cast<int>(std::ceil(r2));   // profile grid half-size
     const int G = 2 * R + 1, GG = G * G;
     auto idx = [G, R](int dx, int dy) { return (dy + R) * G + (dx + R); };
@@ -108,7 +114,7 @@ std::vector<Reflection> ProfileIntegrateInternal(const DiffractionExperiment &ex
     double inv_d2_min = std::numeric_limits<double>::max(), inv_d2_max = 0.0;
     for (size_t i = 0; i < npredicted; ++i) {
         rough[i] = BoxSum<T>(ptr, xpixel, ypixel, special, saturation, predicted[i],
-                             r1_sq, r2_sq, r3_sq, r3, min_sigma_ratio);
+                             r1_sq, r2_sq, r3_sq, r3, min_sigma_ratio, apply_bkg_clip);
         if (rough[i].ok && predicted[i].d > 0.0f) {
             const double inv_d2 = 1.0 / (predicted[i].d * predicted[i].d);
             inv_d2_min = std::min(inv_d2_min, inv_d2);