I shoot split as well for the reasons already mentioned. Mostly, just more control over the arrow. I've shot nocking the arrow above the nock point, like Hill did. Works fine, but the arrow can slip on the string. Can do that if one nocks under the nock as well using only one nocking point. That's why I use two. I spend a lot of time on stand, and if the arrow were nocked above the nocking point, it would be falling off the bow a lot. If it's nocked below the nocking point, or with a nocking point above and below it, it's held in place by the extra weight of the shaft that protrudes beyond the back of the bow.