I have a Lib Tech PJ 5'5 and I'm 170 , I picked up used and was like new and it's literally the strongest board I've ever had. I'm a alternative board construction geek and have had about every type of construction from Aviso, Rainbow, FW, XTR, Coil, Hydro Flex, Black Dart.
The Lib Tech has by far been the strongest with Firewire a close second. The Lib Tech finish of the shape in details in the rail, tail, ect is very impressive. It also has good flex. It's harder to tell in the water because mine is thicker and wider and I use in sm FL 2-3ft junk surf. Pushing on it upside down on the ground ,it flexes very well similar to my other boards.
I've literally tried to destroy the board showing my friends by jumping up and down on it in the parking lot and it didn't leave any marks or dents. There's something ) special about the resin they use that blows my mind, it's so insanely strong like nothing I've seen before in surfboard construction. It's a little heavier than my other epoxies like my Short Round Black dart which has not held up nearly as well as I hoped but it's very lite and a great performing board.
It's funny they are so damm durable that it seems they are shooting there self in the foot because you wouldn't need a new board every 6 months because these will probably last years and years. Lucky for them many want the latest and greatest shape or model and many of us are board addicts.
I'm interested in trying a good wave board like the Sub Buggy in good surf to see how it performs and how responsive it will be.
I was joking with friends on a surf trip and thought truthfully, you wouldn't even need a travel bag and could put this beast on a plane with no board bag and the thing would probably be just fine, ha