I can further clarify. When I went with the upgrade to MM, it was based on a bit of research that I had done via internet, magazine articles, etc. Specifically the Tone Clones. They always received high praise at the time and the amp tech also highly recommended them. When I replaced them, I think I only had 1 amp that used MM as OEM equipment.You know I'm happy for you and thanks for the clarification. Then, if you forgive me, but it seems that you went with what you're used to, not necessarily the item you liked best or that performed the best out of a rake of options. So in effect your experience of MM makes you a valuable asset, although you cannot extrincically speak for the performance of MM specifically. Or can you? Just thought that needed to be straightened out for us to be on the same page.
I'm not sure I understand what you are referring to as not being able to speak to their performance? I can speak to how they perform and sound compared to the original Dagnall transformers in the Marshall SLP. Maybe I'm not following your statement.