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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I have Canary Grand Reference 300B mono amps.  There are 16 300B tubes.  When I purchased the amps, I purchased Golden Lion tubes.  In talking with Canary they stated the biggest game changer for sound in their amps is not power cords, fuses etc, but WE 300B tubes.  In my case that would cost me $12k for 16.  I would love to swap out the Golden Lion tubes but that is a steep price to pay.  Anyone have any suggestions?  
David, 
The Woo Audio 300b amplifiers have been  well regarded for quite some for both sound quality and built quality. Mundorfs are very well regarded. I have to believe that those higher quality coupling capacitors and power supply capacitors would make a worthwhile sonic improvement. I can't speak precisely  to how reasonable the upgrade cost is but probably good when considering the parts involved and the professional labor.
Charles 
Thanks, Charles. Let's see where the journey for a headphone amp leads. Woo Audio (several options) is on the list. Viva Egoista 845 or 2A3 is as well.
David,
I can't imagine that you could possibly go wrong with either choice. Viva does possess that special  beautiful Italian  musical aura. 
Charles 
I have the LinLai E-series 300B and the new WE-300B. I like the WE better and hard to beat the 5yr warranty. The price difference per pair is ~$500 US (1/3 total) and I think that is a fair evaluation comparison of the two tubes. That being said, the LinLai E-6SN7 is crazy good in my pre-amp. Wow!