RE: 3D range..
I shoot a 400 grain (total arrow weight = 398) and I do notice that the wind will whip my arrow around a bit. Like you said, in a moderatly strong breeze about 4 inches or so over 30 yards. I have thought about compensating for this, but am always afraid the wind will die down just as I release. What I attempt to do is hold until I feel a lull in the wind and then release. Sometimes it works, sometimes its a gut shot.