At the shop I tried the Hifiman 400S (with an amp that I didn't get the name of) connected to a MacBook they had at the store and listened to Everything in it's right place. It was okay. Not super impressive, it seemed kinda muted in treble, mids, and even bass compared to my AD700+E07K (bass boosted). I now kinda want to go listen to that song with my setup though. At least they were comfortable.
I also tried the Audeze LCD2 paired with another amp off in a separate room. We listened to Kendrick (Swimming pools, King Kunta). The LCD2 has a really clear sound, it was easier to pick out the various layers to each track while listening. The bass is more natural than my AD700s.
I'm conflicted about them as I can tell the LCD2 is a good set but the sound wasn't compelling me to sit back and soak it in while listening​ like my AD700s with my setup, or even the MDR V6 or HD668B at times. I felt a strong desire to hook them up to my E07K and/or my computer so I would be able to tweak the sound and get it just right. I didn't bring the dac with me but I will next time.
I'll definitely go back. Next time though, prepared with dac in hand and my library loaded to my phone. I want to see how my setup can run things, especially ballpark sets like the HE400S.
Edit:
I've already gone and come back, but thanks for the suggestions. I'll demo the 650 and DT880 next time, probably next weekend. I'm also going to check out another shop called soundscape that has a different selection.
They also had Focal Elear, Focal Utopia, Audeze LCD-X, and AudioQuest Nighthawk carbons that I'd be interested in checking out. There are a bunch of others I didn't recognize but I'm going to try anyway. Apparently they hosted a party to show off all the various hifi audio brands just a few days ago and let people try all these different sets, including a pair priced at $50k which is one of two in the US.
Local HiFi seems like it's going to be really interesting to get into.