Charles, I finally got the long anticipated a/b/c in on the 101Ds. Bottom line is that I do not think you will regret the purchase. I selected two pieces for the evaluation. The WE replicas are quite clearly the best of the 3.
The Shuguangs were relatively lifeless A/b'ed against the WEs and also against the Psvane hifis. I couldn't wait to get them out. If I gave the 3 tubes a numerical rating, I'd put the Shuguangs at about 80, the hifis at 94, and the WEs at 100.
The WEs are slightly more resolving, have more air, richer harmonics, and better dynamics on attacks with substantially more nuanced decays compared to the hifis.
In my estimation, well worth the substantial markup in price. I eagerly await your take on the tubes.

