I can't fault this board so far I have used in 10knots upto 25knots with no problem. I have the 85l version and weigh 80kg, stability has not been a problem and the board gets going quickly. Takes the stress out of marginal or choppy days. Riding strapless currently, the board is light and stiff. Yet to try bigger waves. I would say the construction seems on par with more expensive brands. Nice board and fast delivery!