Raises hand slowly in the air,I do. I've had several V-zones in the last few years, one L-zone and a Leupold VXII set up for xbow use. I can tell y'all the V and L zones are 2.5x to 4x, AT THE ENDS of their adjustments, so a 250 fps setup is using the 2.5x setting and the 350 fps stuff is using the 4x setting. All else fall somewhere inbetween, and, imho, the difference in magnification is barely noticable because it's not at either the high nor the low end of the range. Guys always ask what setting their Zone should be at for a particular bow, and seldom get answers that will work for them due to the unknowns and variables like what speed are you getting? Even then, the numbers on the speed ring are just rough guide lines, I can't honestly remember one time they matched my chrony results to a T. They are sooooo easy to adjust!! Set the ring where you think you are speed wise, and shoot at preferably 40 yds or 50. 30 will work, but the other two give you all three ranges at once, the 30 sometimes needs tweaked a little at 40 and/or 50. Just turn the ring slower to raise poi and higher to lower and you're done til you switch arrow weight or string type on an Excal.