Alright well the NK65 is still in a box and I’m still figuring out the new mic, but I did pop them in a BDN9 macro pad and capture them with my phone. Not the best recording, but you can at least compare them in-context:
At least to my own ear, I’m gonna say the Boba Linear Thock might take the deepness cake among these, closely followed by the U4 Thock and then Ink Black.