Here is the Roger Hinds Versa-Plane again with the front fins of the Thruster set placed at 4,6, or 8 degree and the back fins of a Side Bite set placed at 0,4,6,or 8 degree is the first pic at the left creating a Quad set-up.
The middle pic is just the Thruster set-up using 4,6 or 8 degree in the front boxes.
The pic to the top right is a basic Twinzer set-up using your Side-Bites in the front always 8 degree insert, fin all the way back. The back fins are your Thruster front fins in a 0,4,6,8 degree insert most of the time all the way forward in the insert.
Now if you take their cost of this approx. Probox: 1 set of Thruster Production Fins at $30.00 retail, 1 set of Side Bites at $18.00 retail and the cost of 2 extra insert expandable kits at $5.00 each total = $58.00
Now if you take any other system and compare pricing you will see what happens to your wallet, except with 4wfs because of their cant adjustment. By the way welcome to Swaylocks 4wfs. Starting with the Side Bites in Production form which also would have to come in 4,6 or 8 degee at approx. retail costs of $18.00=$54.00, Thrusters would have to come in 4,6,or 8 degree also at the average retail costs of $30.00 each=$90.00. Total=$144.00
The fin cost to do the Versa-Plane concept is only part of the concept, being adaptable to different bottom contours is another issue. And that’s where ProBox is the only Fin System that can make that claim, adapting ProBox to a simple bottom, to a deep double concave bottom like a Bing (Bonzer Style Bottom) which creates the Versa-Plane Concept offering a unlimited range of possiblities without breaking the Bank. It doesn’t matter what your Fin System’s offers if they can adapt to any board. You shouldn’t be shaping a board to adapt to a Fin System.
I will show you on another post some boards retro fitted from a Thruster to a Versa- Plane and how those retro fits helped me in finding a formula for the Versa-Plane Board Concept, which can be used on any board shortboard or Longboard. Mahalo