| There is no reason for these changes in our mind... but we dont use foam, or that style of construction so cant help.
AlanT
Wood cores dont age as such.
The reason for me saying this, is beacuse If a limb is made from the same plank, from the same tree and made properly, then the limbs should not loose poundage, or change independently over time. our customers say this to us.
Syntatic foam is a foam full of microspheres (glass spheres, are full of gas and are used in more quantity to keep the density down.). I have yet to meet a foam that does not loose its structure if compressed multiple times, with enough load, and this load is dependednt on density. You bed mattres, car seat, Life Jakets, and boyancy aids, Camping mattres. These are foams made in a different way, but the concept of bubbles means a weakness in our eyes.
If you take a set of limbs paired from a different batch to each other, then i can see a possibility for this "settling in" that archers are observing.
Things that we have seen alter weight of a limb made from the same machine settings on the same day.
Edge sawn or Flat sawn.
Top of tree/bottom of tree
Tree to tree as colder climates create closer grain/more dense wood, So this could include slope aspect.
Add that onto some fine tollerances and you can have a recipie for weight and balance issues if you have not matched the limbs properly.
We think mass producers see wood cores as a cheap option, and dont put the time in to them. We apply the same time to our synthetic limbs as we do our wood cores. This attention pays dividends in our eyes.  |