I'd be curious to know whether you're heel striking when running. I'm a natural heel-striker, but I forced a change to mid-foot and my shin-splints disappeared altogether. It took a little time to build up to my heel-strike pace, but I did and was able to continue to avoid shin splints even at the same pace. All of this was done with regular running shoes (not barefoot-style).
I believe I am, but don't have great evidence to say one way or the other. I have very flat feet, and just got new orthotics/shoes actually. Any tips or helpful guides/drills on how to transition to mid-foot you would recommend?
I'd definitely be straying too far outside my wheelhouse to be comfortable with recommending how to transition, especially considering you have flat feet (I have regular arches). I can tell you that I watched this short vid and attempted to take its recommendations into account: