Keep at it Kyle. We are all in this learning process together. Again, props to you for offering to be the "guinea pig". Your form will benefit from it in the long run.
Now onto something else. I've always shot three under, but messed around with split off and on. So it's been three under as a kid with a light recurve, as an adult with compounds (switching to a release before I came to the longbow) and now with the Semi-long.
Recently I have been playing with split again mainly because I have noticed a DRASTIC reduction in string noise at the release. Now my 3-U release is not "loud" by any means, but my split release is dead silent. All I hear is the arrow hitting the bale.
First question: Why is split so much quieter than 3-U? I know this is not unique to my shooting. I searched and found this question asked before, but no clear answer for it that I could find.
Now onto my bigger problem. So I'm a right-handed archer, but left eye dominant, like our mentor Howard. And no don't try to get me to switch to lefty. I have bad shoulders and I don't think my right could be a solid bowhand. Anyway, when I shoot 3-U I anchor with my middle finger in the corner of the mouth and press the area between the second knuckle of my index finger to the first knuckle of my thumb into my cheek bone. Nice tight fit and rock solid. This allow for a nice gradual angle from my eye down the arrow shaft to the point. Basically where I point the arrow goes. When if I use the same anchor with split my sight picture is completely different since moving the index finger above the arrow effectively drops the nock end forcing me to lower my bow hand towards the target. I'm now faced with a more severe angle from eye to arrow point. I have to aim much lower for the arrow to hit the mark. I tried to use the ring finger in the mouth corner, which raises the sight line back up to original position, but my middle finger gets in the way and my cheek anchor is no longer in the same place. It creates a very high cheek anchor and I hate it. It's very uncomfortable and not repeatable consistently.
3-U always worked for me like pointing a shotgun. Point the bow at the target and shoot. Split throws me all outta whack. It's aim under the target and pray the arrow finds the bale.
I would like to shoot split, so any suggestions are welcome. Maybe I'll try 2-under. That might help out. I'll let you know how it goes. But for now hit me with some advice and options. Sorry Kyle, my turn to be "guinea pig". :D