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Dan · 15th July 2010, 10:22 PM

I'm pretty sure that the width of the two boxes are within 2 mm of each other, and that may be due to small manufacturing tolerances. The big (only) difference is the greater depth of the E-box.

Many fins are now spec'd for E-box, but use tabs or laminate that can more easily be reduced or eliminated than if the entire base was a smooth surface. This makes it less expensive for fin makers to offer a fin for both boxes.

15th July 2010, 10:22 PM	#5
Dan New Member Join Date: Aug 2006 Posts: 18	I'm pretty sure that the width of the two boxes are within 2 mm of each other, and that may be due to small manufacturing tolerances. The big (only) difference is the greater depth of the E-box. Many fins are now spec'd for E-box, but use tabs or laminate that can more easily be reduced or eliminated than if the entire base was a smooth surface. This makes it less expensive for fin makers to offer a fin for both boxes.