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Aloha Ed,
I’m a beginner. Started at age 70. 76 now. So — maybe not your best resource. But, I have a Starboard 8″10″ that has 5 boxes. I’ve changed several times between quad and thruster. I think the main difference is quad is faster than thruster, but less stable. The thruster setup is better for turning. I have finally settled on the thruster setup. NO setup is perfect for all ocean conditions and board size and shape. Also, single fin is good for long board surfing down the line.
Mahalo,
John