How does shaft endmass affect squirt and how is endmass related to stiffness?
See Diagram 4 in my February ’08 article. People who think extra stiffness is required to produce more squirt are incorrect. Added endmass alone (without added stiffness) produces significant increases in squirt. This supports the theory in TP A.31. However, “endmass” is related to stiffness. A stiffer shaft will typically be thicker and heavier at the end. Also, transverse shock waves will travel faster in a stiffer shaft, effectively increasing the “endmass.” See the paragraph after Equation 4 in TP A.31. For more information, see NV B.32 – Squirt and the effects of endmass and my August ’08 article. Also, to see how the amount of squirt can affect the miscue limit, see: HSV B.47 – effect of shaft endmass and squirt on miscue limit.
