Regularization-schemes-of-the-pairing-field.md

@@ -39,7 +39,8 @@ with $`\mu_{+} = (\mu_a - V_a + \mu_b - V_b)/2`$ being average local chemical po
 ```bash
 # ec                      4.9348022 # energy cut-off for regularization scheme, default ec = 0.5*(pi/DX)^2
 ```
-For more info see [arXiv:1008.3933](https://arxiv.org/abs/1008.3933). 
+For more info see [arXiv:1008.3933](https://arxiv.org/abs/1008.3933).  
+*Note*: the spherical cut-off scheme results in a significant decrease in memory consumption and improved performance of `td` codes. 
 
 # Renormalization with cubic cutoff
 **!!! THIS FEATURE IS EXPERIMENTAL - NEEDS MORE TESTING !!!**