I've shot split for decades, and changed to 3-under about 5 years ago. I've got bows tillered for 3-under, and bows tillered for split. Every single one of my bows is noisier with 3-under release, and quieter with split. String silencers mitigate the difference, so I'm unconcerned with the noise now. I get a much cleaner and slicker release with 3-under. My arrows clear the bow straighter and cleaner in flight. They hit harder and penetrate deeper vs my split-finger shots...side by side. I'm simply getting much better performance out of 3-under. I can't envision ever returning to split-finger, which now feels very clumsy/awkward to me.