As for those dual threads vs single post, it’s up to the repackage what they want. Some people say proper dual threads (with helicoil) are “Eve factory spec” anything else is “resale grade”.
The 32 lf280k v3 I also ordered from Jenny wu just came in today from the China warehouse and they all look just like the 16 exactly identical to what I posted so am very happy so far with all 48, will be doing another 32 order prolly tomorrow. Ymmv but so far I am very happy.