Well just stopping by..
If you are trying to get around sounding clean, precise, and in tune by developing a style that lets you play as sloppily as you wish, you're cheating yourself.
All the mentioned players are more than worthy of study for those things.
Buddy Charleton spent nearly every waking hour learning, studying, and practicing nearly every lick that Buddy Emmons ever recorded. NONE of his time was wasted, nor did it stop him from developing his own "Style". I can tell him in a few notes. This was in the time period that I took lessons from him anyhow.
I LOVE Lloyd Green's playing and can remember days and weeks of going over things off "Shades of Green", and other albums trying to get things down.
None of my time was wasted. If anything I found how hard it was to play things that sounded "simple" because of the often complex ways he put them together.
SImilarly with learning old things off records, or tricks that John Hughey made famous such as rapid blocked chords.
Playing things note for note, or trying top play things as cleanly as famous steel players is not wasted, NOR does it keep you from "developing your own style".
You will have your own style no matter what you play.
There are TONS of nuances you can learn from many sources.
One is to try from time to time to play things that are "pleasant to listen to" from players that were not known for supreme accuracy or "schooled style" such as Jerry Garcia, or the "avante garde" things from say Robert Randolph or David Lindley.
Bobbe Seymour has TONS of things that make you want to either play along, or learn note for note, and they aren't as intimidating as some of the most complex and razor accurate instrumentalists.
In short, if you spend your time learning things from other players that challenge you, you will not learn things that will hurt "your style".
There is no easy way to play things that measure up to YOUR standards.
Not really.
Getting ideas and techniques from others helps.
You'll know if you're trying to excuse being sloppy as "having your own style". You'll also know if other people are trying to, but you probably won't point it out when you go and hear or see them..
EJL