Are we talking the 1/4" hex drive impact tool here or the 1/4" anvil wrench.
I have had both styles in the Milwaukee platform and I really do like a snug fit with the socket on the tool, which a spring ball retainer 1/4" hex drive socket adapter provides vs 's 1/4" Milwaukee's 1/4 square drive.
I haven't had much luck with impact sockets fitting snug on the ring anvil. Not that affects performance but just sloppy free spinning.

I don't know if its just the limited few 1/4 drive impact sockets I use though
some chrome finished sockets I have definitely fit better.
Are there bullet shaped tapers to some 1/4" stuff or are they all just full diameter in length or the stepped style?