When learning any new riff/technique on a guitar or banjo I experiment with different hand positions, pick attack angles, distance from bridge on different strings as well as when having different frets capoed.
The amount of times I have to go through most things to learn them and get them to become part of my playing, gives me the added ability to do all this other stuff at the same time.
When learning most anything, playing in time, cleanly, with good tone and dynamics is always my goal, like most anyone else.
I find that I learn a lick/passage much faster when I mess with the tone & such as I’m learning it = I believe I may be listening closer when I’m listening for more things, and I most certainly can repeat something many more times without it becoming overly boring. As an added bonus I also learn so much more about what each of my instruments is capable of sounding like just through small changes in hand position, attack force, etc.
I shoot for what gives me the tone sometimes, or speed, or timing, or clean other times, or simply experiment around to see what works best. I can’t say I have a definite way I play, as it changes per requirements of the song or what I’m trying to accomplish.
In short I suggest continuing to look for what it right for you. We are all built, coordinated, and wired differently and what works for one may not for another. Great question to ask though, good reminder to pay attention to what we do when we play and why we are doing it.