ProBox Finsystems

People talk about Drag from open fin box slots, notice no bubbles go into the center fin box.

It seems people are so busy Theorizing Allison 4 Fin Race setups without even trying it themselves. So I put together a Album of a few people would paid to have their boards retro fitted from a single fin world to a Allison Multiple Fin world. Click on each pic for a review and see if that covers your Margin of ERROR my friends who seem to have a conclusion without trying the setup themselves.

Larry Allison finishing up ProBox Finsystems retro fits for customers who want the most out of their SUP Boards Performance . While other companies claim the Hype, we at ProBox Finsystem claim the REAL DEAL of Performance! Now you know why Larry Allison's nick name is " ProBox- Larry"

https://soundcloud.com//larry-allison-master-of-racing-fins

I think you will find this discussion about Allison Probox Twins enlightening for those of you that are on the fence, Should I or Shouldn't I go 4 fins on a Race Board. Finally the large amount of you using Allison Probox Race Twins over the past 5 years have made a impact. For that I thank you for thinking outside the box and looking for Progression in the Sup Community instead of the Corp. Koolaid Hype that buys you frustration. http://www.standupzone.com/for/index.php/topic,30391.0.html http://www.standupzone.com/fo/index.php/topic,30391.15.html

Finally a in depth Test between 4 Fin vs. Single Fin by John Judge from New York! Thank You John. https://www.youtube.com/watch?v=4ysPPYOcXw8&feature=share

Here is a cart from Blkbox Rider Maggie Adams with a breakdown of fin combinations in same board: Tests Performed by Blkbox Rider Maggie Adams Table 1 Fins Time (min)/ Miles / MPH / SPM / D/ST ... Twin Box/Ventral/kicker 6.24 / 0.43 / 3.96 / 48 / 8.2ft Twin Box/No Ventral/kicker 7.21 / 0.43 / 3.49 / 47 / 7.5ft Single Fin Blk Box Fiberglass 6.24 / 0.43 / 3.96 / 48 / 8.25ft Single Fin Kicker 5.49 / 0.4 / 4.12 / 47 / 8.4ft Conditions: Heading W-Head on wind & chop, & some boat wake, E-down wind SPM= stroke per minute D/ST= Distance/stroke Twin Fins: 4" by 9" Stealth Twins with Small 2" by 9" ventral Small 2" by 9" Ventral Kick Fin 5-3/4" Single Fin Blk Box 7" Fiberglass Blue Board Blkbox Uno 12'6"

https://www.youtube.com/watch?v=Tm4GqNpnxJE