The Loose Cannon is a very versatile fish shape has performed well under multiple fin configurations. It works incredible as a twin +1  or with a 5 fin set up as well. We always include the mini trailer on the twins to add versatility to the board. The Loose Cannon's outline has a fuller nose than the OG fish and a more pulled in tail with a wing. It's meant to be ridden 4 - 6 inches shorter than your shortboard. We've built them with swallow tails and have made some with thumb tails as well.