top 5 NEW production 6sn7 tubes

Do any of you folks using Linlai know if there is any REAL difference between Linlai and Linlai Global? 

I can also add I have Tung-sol and Electro Harmonix 6SN7's and neither of these have proved adequate to stop my purchasing NOS 1950's Tubes.

But both are able to to produce a End Sound that is able to be lived with for extended periods.    

I was happily using Linlai E's until i got the Cryotone 6SN7's. These are magificent tubes. 

I am also a fan of the LinLai E-6SN7 tubes.  I bought 4 pairs of them from whoever was selling cheapest on Aliexpress and never had a problem.  I have at least a dozen pairs of NOS 6SN7s that all have slightly different flavors but found the LinLai to be the best all around for my tastes.