LinLai WE 300B or the LinLai Global Elite Permaloy 300B tubes ?


I presently am using Sophia Electric 300B mesh-plates and find them to sound good in general.  I originally used the Sophia Royal Princess 300B's and really loved the sound, however in my experience, reliability was really poor and for the price, it wasn't any fun trying to get replacements.  I'm getting ready to order new 300B's however would like to know if any of you have had experience with their WE 300B or their flagship Elite Permaloy 300B.
Thanks... John
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@peterh_nz  Peter, thanks for the detailed response and the information you shared. Very helpful. 

I have Focal Utopias and the HiFiMan HE1000 and HE560. HeadAmp GSX-Mk2 for amplification. DanaCable leashes.
If you mean the LinLai WE ones, most-likely yes.  By the way, my Global Elite 300-B quad-matched just came in so I'll be putting them into my amp this weekend and start the break-in process.  I want to get some listening-hours on them before I consider buying the LinLai WE's.  
There's a pretty interesting article in this month's Stereophile by Herb R about 300b's, including the original WE version, the reissue a number of years ago, and the currently available WE version, manufactured I believe in Rossville, Georgia (USA).  Along the way he has some comments on other manufacturers' versions of the 300b.