MO was indeed awesome. I only sold to get TMs which I will still strive for once he makes another batch.I liked them but decided to keep the Elrog ER and MO instead. Now that I have the TMs and better driver tubes I should probably get the WE300B for a more complimentary tube to the TMs. My MO is just relegated as my backup pair if the TMs go kaput.
If I only could own one 300B tube and it was between MO and WE .. I would go with the MO every time. But now with the TMs, WE300B is seeming like a good addition to the arsenal.
I think for my tastes I may prefer the WE300Bs though overall.
Technically they are not as strong as the mighty Elrog MOs but they sure sound sweet.