As I said I'll have to check when they arrive. I've had the Mini's in the past - they are very nice. But not in the same league as my beloved Holy Grail '75 Reflektors IMHO. But we'll see, that's why I want to try a couple of different ones.
The OP has a different amp I believe - a Woo now, with tube outputs. A very sweet amp. I had a Woo WA-6SE before the Lyr - I like the Lyr way better although it cost 1/3 as much. As sweet as the Woo was - the Lyr is way more dynamic, exciting, and with the right tubes better detailed and just as musical. It's a giant killer for sure.
I have some Heerlen Valvo/Philips E88CC coming as well. Those are '60s date codes I believe. Delta factory codes
Tube rolling is awesome - and everyone will have a bit different tastes, hearing, systems, etc... It's great to be able to share impressions. Could you write a detailed review of the 188s including what they do that makes them your favorite. It's helpful to know what stands out and how that compares to the other tubes you have. I know our tastes diverge - as you loved the '75 6N1P's and didn't care for them at all (I have some for $10/pr if anyone is interested in try them).
Thanks in advance!~