Shuguang Black Treasure CV181-Z

@dragon_vibe 
How's your MP-1 sounding with the CV-181s ? can you post your experience? is longevity an issue?

Finally had a chance to start testing the BT Zs on my MP-3 and the first driver on MA-1, due to the size I cannot put 2 BTs next to each other on the Amp sockets.
Sound completely different, trying different styles of music the BT gives more uncontrolled not so tight bass as the stock shuguang, the midrange and highs on the stock shuguang is wonderful. 
Wife immediately asked "what did you change this time, sounds awful" she is a pianist and a singer with better music assertion and ears than mine and I noticed as well. 
I believe these BTs need some time to adjust so I'm planning to cook them with a few power Russian tubes I got as spares and will post again, I hope they will improve, I think I was expecting much initially. Also expecting some chrome domes and Russian melz which I will expect to be disappointed. 
If anyone can post more of their experience with Sophia and Sophia blue and psvane tii that would be great 

I bought a couple of the Shuguang Treasure Cv181-z tubes for my Modwright LS-100 and one went microphonic in about 3 weeks.  I was able to get a refund and put the stock tubes back in.