Couple more notes since I meant to talk about the 2a3s (oops):
The EML meshplates have a very big soundstage, but it's a little on the unnatural side of things sometimes, and can sometimes be a little too crisp for me. If you're okay with it being a little bit on the crazy side, they're wonderful! I still do like them, but the KRs just edged them out.
The KRs ended up being a wonderful middle ground - nice detail and bass without being too analytical and sharp. Musical and non-fatiguing. Nice soundstage without being over the top or unrealistic. They're a bit pricey and hard to track down, but worth the trouble.
Honestly though, the black glass Linlais are a really great value for the money. Performance is quite good for a new production, budget tube. To get much better you are looking at 3x+ the price point unless you get lucky with some random NOS models.