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hilly said..Lots of brands use a denser core and lighter glassing. Light core and heavy pvc outer needs vent. More air in there.
can you explain this in more details please?what do you mean with lots of brands use denser core and lighter glassing.
I thought EPS is a light core?I thought XPS is the heaver core
and EPS and PE are not so much difference ?
do you mean only glassing? or did you mean the carbon glassing or wood sandwich style?
But how is the Quatro different from this?