Some Performance Longboards..

Starboard longboard 9 x 28 100L
Smik Twin 9.2 x 28 120L
Sunova Style 9.6 x 27.5 112L
Gong Zero 9 x 29.5 115L

Wondered if anyone can shed any light on this. Performance longboard sups seem to be wider and be more voluminous than their shortboard performance equivalent. Why is this?

Prone Longboards aren't overly wide and litres seem on par with that of prone shortboards.

But with Sups the gap is huge.. For example the smallest litre starboard shortboard is 7 x 24 66L.

Is the message from shapers that with longboard sups you don't benefit from lower volume and narrower shapes?

Interested to hear any views..