Some years ago, I switched from split to 3 under. I practiced with it for a few months, and felt like it was becoming natural for me to shoot that way. Then the first time I went hunting, I shot over the deer's back because I unconsciously reverted to split for that shot. I think I did that because the last time I hunted before that, I was using split, and my hunting mind hadn't switched over to 3 under yet, even though it felt natural to me on targets.
Now that I shoot targets more than I hunt, I've considered face walking, which would probably include using both split and 3 under, to reduce my gaps at different distances, and would still be legal in the tournaments I shoot in. But I haven't done that because I don't want to complicate my life, which is the whole reason I got away from shooting compounds to start with.