Just to say that I have lost a lot of life-time in this thread and it looks like I am about to lose a chunk of money as I, ahem, invest...
I came looking to buy some anc iems - my only experience has been the Sony WF-1000XM4s - I have grown to find them muffled and woolly, which could be the earbuds, and buying replacements for these is not easy.
Anyway, I came here to thank you all for your comments, sad to report I have very much enjoyed reading about 200 pages of wireless iem information, opinion, and knowledge.
So, despite there being a new pair of wireless Noble's on the horizon, I have today ordered the Triumph's and I am very excited. They seem to be the most agreed upon iem on here. I might also get the Nothings as my anc companion, and then I better stop reading as I have no doubt the new Nobles will be very well received on here ....

... this may mean more investment...