Scot,
For me it's been an on going thing for the last 30 odd years.
Since you mentioned split vision and that's what probably sums up my way of aiming,"I'll explain it like this.
I understand the basic math of real gap shooting but I've never been good enough at it to be a real gap shooter.
What I'm doing during back yard practice is recognising the gap by just seeing it.
I don't think about the inches,I just see the arrow in relation to my target and take the shot.
Now,when it comes to hunting shots or competition,I don't see the arrow at all but I'm still as accurate as during practice.
I feel the reason for this ,is that I've programed my minds eye to recognise the sight picture without "needing" to see the arrow.
When I first realised I was doing this,it messed with my head a bit but in the end I decided to just go with the flow,and now when the pressure is on I just concentrate on form and maintaining my full visual focus on my target.
Having said all that,I was hunting rabbits the first week I picked up a stickbow and deer within six months.
Always using this method but only putting it into words in fairly resent times.