Interesting. I think you should go grab the Moondrop Crescent as well.
I liked it much better than the ****. You may find this weird, but listening to them side by side, I found the **** to have a more artificial timber with male and female vocals when compared to the Crescent. It may be that the **** is a bit too analytical already and I prefer the more 'colored' sound of the Crescent. It's kinda weird calling the Crescent colored though, but I guess that fits when comparing it to the ****.
My biggest and probably only complaint on the Crescent is the freaking cable though, as it's pretty microphonic and it's kinda annoying that it's not removable (spoiled by all the others at this price range and cheaper I suppose). For tips, I found the MH755 Sony Tips to be a perfect match, and I'm tempted to buy more MH755 just to get more of those tips.
Currently rotating between my iems and using the F300 (used the **** yesterday) so that they all get some love. I like my F300's as well, probably the most comfy iems that I have with such a laidback sound that's a match for many different genres