I have gotten a ton of sessions on these fins (size L) this fall, and have been extremely happy with them. In a market saturated with carbon fins, these are a little bit more my speed. The glass construction offers a stiff, familiar feel (especially if you’ve ever ridden glass ons) and feels super solid and locked in when surfing powerful waves. The raked outline feels great in terms of drive in hollow waves, and works great in hard arcing turns, especially on a round tail shortboard with some rocker to use to your turning advantage. Don’t let the construction shy you away, they are still plenty light and tried & true for powerful turns in powerful surf! I’m loving them in my JS Xero Gravity Round and can’t wait to try them in more boards soon.