Big Hips Mama
We were repairing a 1950's Velzy /Jacob balsa board for Tony Caramanico and the board had the most curvy hips and the classic old pig shape, but no nose (no balance) awesome, it was the dawn of design.
Response
On most nose riders the nose wants to plane forcing the surfer to run forward on takeoff (not that most surfers don't want to do that anyway) as the tail sinks; but for the surfers who want to drive right into a turn there needed to be an alternative.
Curves
Babys got back, its like a wave magnet, you can stall turn and pump for speed all from one power zone as soon as you stand up. A few short steps and you're on the nose with speed..drive around the section draw long lines with the balanced template. A few steps back and you are back over the curvy wrap around turning tail...on big waves it rides like a much shorter board when you are controlling from right over the fins.
Bottom
The bottom incorporates concepts from all eras of surfing design. A double concave tail to stay with the "lets use the last 1/3 of the board" concept. A break in the bottom ( a little belly to loosen up the rails ) lifting the rails and narrowing some of that wide planing area. A concave nose with a baby V right behind the nose concave for some control from the tip. The bottom rails have a 3" planing band from nose to tail (the concaves are more centered not out to the rail) Rolled edges hard in the tail.
We have a hot 7.5" center fin with side bites to keep that big caboose connected to the wave face, You'll soon see you can do old school flat turns as well as full up on the rail turns or pivot from the tail.
Control
For a real treat try this template on a Mini longboard Yowza!