Finder X1 owner here. Phones are partnered with Chord Hugo.
Very impressive sonic results, and especially in tranparency field (my reference pair is a modded Hifiman HE-6 on a Firstwatt F5).
Bass is very good as well as dynamics.
Mids are a little distant sounding and with less body compared to my reference (HE-6).
Problem is the somewhat annoying upper mids / treble. Fortunately, the 3-day burn in has tamed these frequencies, so I have hopes.
I'm using reference filter and comply tips.
You literally just made my day by mentioning the Finder in the same post as the HE6.