xtrema312,
I agree with Rob....I don't see the reason for comparing to fletched arrows. Being RH, if it kicks left it is weak, right it is stiff.
Yes, high EFOC does tend to steer the arrow better creating easier tuning. Like I have mentioned before and confirmed this with Dr. Ashby...others may agree...My 30% UFOC 900 grain arrows seem to fly with the same trajectory as a 750ish gr. arrow with 15-20% FOC. I think the reason is exactly what you are seeing...heavy weight forward steering the shaft behind it.