This one is for you super tuners out there. How much change have you noticed when adding or subtracting 10 grains of point weight to an arrow. Can you even notice a change? I am referring to going from say a 100 gr. to a 90 gr. when bare shaft tuning and fletched arrow flight. I notice quite a bit of difference when going from 100 gr. to 125 gr. or from 125 gr. to 145 gr., but have never tried just a 10 gr. change. Thanks.