Wonder what your results would be with a standard length 28-29" arrow...and heads mentioned
With a 26.5 " arrow your starting very stiff already...and need a heavy tip to weaken spine
As discussed above STATIC spine is measured by the amount of flex in the arrow when an 880-gram (1.94 lbs.) weight is suspended from the center of the arrow.
The arrow must be 29" in length and supported by two points, which are 28" apart. The number of inches the arrow deflects or bends due to the weight, is the spine size or measurement of an arrow.
so your set up for example 350 spine 26.5 ctc. With a 300 tip and a 50 gn insert...is a short stiff arrow that needs a heavy tip to weaken static spine...
or in a sence the same as a 28-29" arrow with a 125gr head
I know what your are saying..favor a heavier arrow with a heavier tip/front end for better FOC for hunting..
What I am saying your results on paper/paper tune with a 26.5 arrow extreme heads is going to react very different from the norm...
Neil