What happens if you make the shadow compressor the default?

op-batcher/batcher/channel_builder.go

@@ -100,16 +100,16 @@ func (cc *ChannelConfig) Check() error {
 
 func (cc *ChannelConfig) NewCompressor() (derive.Compressor, error) {
 	switch cc.CompressorKind {
-	case flags.CompressorShadow:
-		return NewShadowCompressor(
-			cc.MaxFrameSize,
-		)
-	default:
+	case flags.CompressorTarget:
 		return NewTargetSizeCompressor(
 			cc.TargetFrameSize,
 			cc.TargetNumFrames,
 			cc.ApproxComprRatio,
 		)
+	default:
+		return NewShadowCompressor(
+			cc.MaxFrameSize,
+		)
 	}
 }
 

op-batcher/flags/flags.go

@@ -92,7 +92,7 @@ var (
 			flags.EnumString[CompressorKind](CompressorKinds),
 		EnvVar: opservice.PrefixEnvVar(envVarPrefix, "COMPRESSOR"),
 		Value: func() *CompressorKind {
-			out := CompressorTarget
+			out := CompressorShadow
 			return &out
 		}(),
 	}