diff --git a/trace/src/ctx.rs b/trace/src/ctx.rs
index 0c8699c82d..69820ad319 100644
--- a/trace/src/ctx.rs
+++ b/trace/src/ctx.rs
@@ -154,10 +154,10 @@ enum ContextCodec {
 
 impl ContextCodec {
     fn detect(headers: &HeaderMap) -> Option<Self> {
-        if headers.contains_key(B3_TRACE_ID_HEADER) {
-            Some(B3)
-        } else if headers.contains_key(JAEGER_TRACE_HEADER) {
+        if headers.contains_key(JAEGER_TRACE_HEADER) {
             Some(Jaeger)
+        } else if headers.contains_key(B3_TRACE_ID_HEADER) {
+            Some(B3)
         } else {
             None
         }
@@ -177,11 +177,7 @@ fn decode_b3(
         // Debug implies an accept decision
         true => true,
         false => decoded_header(headers, B3_SAMPLED_HEADER)?
-            .map(|value| {
-                // TEMPORARY (#2297)
-                info!(sampled=%value, "traced request");
-                value == "1" || value == "true"
-            })
+            .map(|value| value == "1" || value == "true")
             .unwrap_or(false),
     };
 
@@ -189,16 +185,6 @@ fn decode_b3(
         return Ok(None);
     }
 
-    let ctx = SpanContext {
-        trace_id: required_header(headers, B3_TRACE_ID_HEADER)?,
-        parent_span_id: parsed_header(headers, B3_PARENT_SPAN_ID_HEADER)?,
-        span_id: required_header(headers, B3_SPAN_ID_HEADER)?,
-        collector: Some(Arc::clone(collector)),
-    };
-
-    // TEMPORARY (#2297)
-    info!(?ctx, "tracing request");
-
     Ok(Some(SpanContext {
         trace_id: required_header(headers, B3_TRACE_ID_HEADER)?,
         parent_span_id: parsed_header(headers, B3_PARENT_SPAN_ID_HEADER)?,
@@ -219,6 +205,9 @@ impl FromStr for JaegerCtx {
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         use itertools::Itertools;
+
+        // TEMPORARY (#2297)
+        info!("traced request {}", s);
         let (trace_id, span_id, parent_span_id, flags) = s
             .split(':')
             .collect_tuple()