Sure agree with the "old timer." 2 oz stuff was light weight in a time past.
Getting 4 core/preg to do its thing now is different. Using single ply
constructions as 2113 or 2116 provides exceptional dimensional stability in
all axes including minimizing warp and twist - for a number of reasons.
These materials also are well balanced in terms of resin to glass ratios.
Because of this alone, they may not "fill" well enough to provide consistent
initial quality and long term reliability.

Using miltiple core/preg materials offer an answer to the "fill" issue.
However, they cost more in many areas.

MoonMan

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