Weird phenomena demoing drivers, I've been hitting a 44 shaft longer

[NLfool]

seems like physics would dictate a longer shaft would hit it farther. Same head and shaft but of course the 44 is tipped so it's prob a bit stiffer and the kick point would different (that's about the only changing variables I could think, swingweight probably also). I'm really liking it so far accuracy has improved a bit but mainly my wayward shots aren't in siberia anymore. I'm wondering if this is an outlier, has anybody gone to a 44 for good. Oh how what are your opinions of the Grafalloy Attacklite Stiff