I bought a Tribal 135ltr Radix for the first time last year. It was perfect for the lighter winds but I really needed something for the higher winds and as I am a budding speed sailer, more stable under power. So I added a Tribal 110ltr Radix to the quiver and man it is fast. Easily added an extra 5 knots to my top speed and I have only used it in medium winds. Tracks upwind well and when you bear away stabilises quickly and "lets RIP". Highly recommend this Aussie made board for anyone looking to go fast.