My buddy is missing his index finger, shoots 2U because he has to, and I don’t see a benefit in any way. I can guarantee a bow tillered split correctly will shoot better, smoother, and quieter if shot split. Everything but accuracy becomes is worse when you deviate. 3U/2U is a noisier shot, it just is. Also, there’s a method I messed with using a strap simulating 2U, I was trying to help a buddy out with. It didn’t tune well. Just my experiences I’m very aware of how accurate folks can be 3U. I make laminated longbows and so I have been able to mess with the tiller, split, 3U and all quite a bit. But honestly each shooter should do what they do best and go from there.