diff --git a/4 Qualifying Exam/2 Writing/2. QE State of the Art.md b/4 Qualifying Exam/2 Writing/2. QE State of the Art.md
index dfd6c96c..7e4e6050 100644
--- a/4 Qualifying Exam/2 Writing/2. QE State of the Art.md	
+++ b/4 Qualifying Exam/2 Writing/2. QE State of the Art.md	
@@ -27,7 +27,9 @@ $$ \mathcal{P} = \left\{ \frac{1}{(m+e_m)s^2 + (b+e_b)s + (k + e_k)} \right\} \t
 \matrix{m_{min} \leq m+e_m \leq m_{max} \\
 b_{min} \leq b +e_b \leq b_{max} \\
 k_{min} \leq k +e_k \leq k_{max}} $$
-where $e_m$ is the difference between the nominal mass and the actual as-built mass. $e_b$ and $e_k$ follow similar logic. Structured perturbations are easy to use to create perturbed plants: simply pick values for $e_m$, $e_b$, and $e_k$ that are within the allowable bounds and plug them in to create a new, perturbed transfer function.
+where $e_m$ is the difference between the nominal mass and the actual as-built mass. $e_b$ and $e_k$ follow similar logic. Structured perturbations are easy to use to create perturbed plants: simply pick values for $e_m$, $e_b$, and $e_k$ that are within the allowable bounds and plug them in to create a new, perturbed transfer function. 
+
+Structured perturbations allow for sampling of the set, but they do have a significant drawback. Structured perturbations severely restrict 
 
 Structured perturbations do suffer from a limit
 (The disk multiplicative perturbation)