Everybody is different. There's only one way to find out if it disadvantages you -- try it and see. For me, the lower my draw arm is on my face, the easier I can maintain good back tension. Anchoring with my index finger on my nose gives me small gaps but I get sloppy after 10-15 shots. As a kid, I shot compounds mostly with a tab, split finger, with an olympic-style chin anchor. Gaps were so big it seemed pointless & I used sights. I love how it feels. But I can't shoot that way without sights since gaps are measured in feet. So it's a perpetual compromise.