diff --git a/checkin_notes b/checkin_notes
index 53514c151e..6588d74c58 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -10044,3 +10044,11 @@ Charlie 11 Dec 2008
 
     clientgui/
         CompletionPage.cpp
+
+David  12 Dec 2008
+    - scheduler: add <ignore_dcf> option;
+        use this temporarily when you've fixed FLOPS estimate
+
+    sched/
+        sched_config.cpp,h
+        sched_send.cpp
diff --git a/sched/sched_config.cpp b/sched/sched_config.cpp
index f0d4d3f1ee..36a92d261d 100644
--- a/sched/sched_config.cpp
+++ b/sched/sched_config.cpp
@@ -185,6 +185,7 @@ int SCHED_CONFIG::parse(FILE* f) {
         if (xp.parse_bool(tag, "multiple_clients_per_host", multiple_clients_per_host)) continue;
         if (xp.parse_bool(tag, "no_vista_sandbox", no_vista_sandbox)) continue;
         if (xp.parse_bool(tag, "have_cuda_apps", have_cuda_apps)) continue;
+        if (xp.parse_bool(tag, "ignore_dcf", ignore_dcf)) continue;
 
 
         if (xp.parse_bool(tag, "debug_version_select", debug_version_select)) continue;
diff --git a/sched/sched_config.h b/sched/sched_config.h
index d43ba175d2..e2c36d5871 100644
--- a/sched/sched_config.h
+++ b/sched/sched_config.h
@@ -126,6 +126,7 @@ public:
     bool multiple_clients_per_host;
     bool no_vista_sandbox;
     bool have_cuda_apps;
+    bool ignore_dcf;
 
     // log flags
     //
diff --git a/sched/sched_send.cpp b/sched/sched_send.cpp
index 09b90deebb..28fbc15010 100644
--- a/sched/sched_send.cpp
+++ b/sched/sched_send.cpp
@@ -356,7 +356,7 @@ static double estimate_wallclock_duration(
 ) {
     double ecd = estimate_cpu_duration(wu, reply);
     double ewd = ecd/reply.wreq.running_frac;
-    if (reply.host.duration_correction_factor) {
+    if (!config.ignore_dcf && reply.host.duration_correction_factor) {
         ewd *= reply.host.duration_correction_factor;
     }
     if (config.debug_send) {