diff --git a/src/descriptor.jl b/src/descriptor.jl
index 28346fb7..ebd4cd8d 100644
--- a/src/descriptor.jl
+++ b/src/descriptor.jl
@@ -30,10 +30,12 @@ For keyword arguments, see the docstring of `DescriptorSystems.ghinfnorm`, repro
 $(@doc(DescriptorSystems.ghinfnorm))
 """
 function hinfnorm2(sys::LTISystem; kwargs...)
+    sys, _ = balance_statespace(sys)
     DescriptorSystems.ghinfnorm(dss(ss(sys)); kwargs...)
 end
 
 function linfnorm2(sys::LTISystem; kwargs...)
+    sys, _ = balance_statespace(sys)
     DescriptorSystems.glinfnorm(dss(ss(sys)); kwargs...)
 end
 
diff --git a/src/uncertainty_interface.jl b/src/uncertainty_interface.jl
index e07133bd..41829679 100644
--- a/src/uncertainty_interface.jl
+++ b/src/uncertainty_interface.jl
@@ -766,4 +766,9 @@ Version that constructs from initial guess
 #         end
 #     end
 #     BlockDiagonal(D)
-# end
\ No newline at end of file
+# end
+
+
+function ControlSystemsBase.downsample(t,y::AbstractArray{<: MonteCarloMeasurements.AbstractParticles},detail_th)
+    ControlSystemsBase.downsample(t, pmean.(y), pmean(detail_th)/10)
+end
\ No newline at end of file