Good to see you- beetlemania-
Yes, during my 1st Thiel CS 2.4 demo, the dealer/retailer (Soundscape Baltimore MD) actually had the Vandy 2CE Signature and 3A models in the same room. I was on work assignment for 4 months, so, I spent several listening sessions every week w/ that speaker lot.
The basic CS 2.4 is much more dynamic, realistic timbre, compared to the Vandys. Much richer presentation as well. I will say that the CS 2.4SE is more on-par w/ the 3A Signature. Very close between those (2) models. To my ears, Thiel is the richest, most accurate speaker, that I have heard to date. If you enjoy the Vandy sound, the 3A Signature is a nicer upgrade, especially, used/demo. Keep me posted.
Happy Listening!