What Are The Best 12AT7's and 12AX7's?

Has anyone tried the Sophia Electric 12AX7's? I bought a pair of their 6SN7's for my Modwright LS100 and they are beautifully made and excellent sounding tubes, far surpassing the stock tubes that came with the unit. I'm considering trying their 12AX7's for my Herron but was wondering if anyone else had tried these--I see they are not mentioned so far. Also, one kind A'goner sent me a pair of tubes to try in my Herron. I haven't tried them out yet as I've been breaking in the Modwright. Meanwhile, we switched over to a new computer and I've lost his email. If you are out there please contact me and thanks again!

Anybody has any experience with valvo 6201 blue label triple mica pinched waist ( 12at7) ?

Be careful with recommendations of one variant or another being the
"absolute best". For instance: "The best 12AX7 is a 5751,
the best 12AT7 is "variant XYZ", etc."

While it is true that a PARTICULAR BRAND/VINTAGE variant can be
better IN YOUR EQUIPMENT, there are a lot of poorly made and
mediocre sounding variants of many types of tubes. For example, many
tout the superiority of the 5751 in my EAR phone pre. While it is true that
the Sylvania and GE 5751's sound very good in it, IMO they don't compare
to the Telefunken 12AX7. And I have some 5751's by other manufacturers
that sound much worse than some very ordinary 12AX7's.

I have amperex bugle boy, telefunken ribbed plate , mullard long plate, cv4004, and telefunken ecc803s is the best for my equipment. No contest