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greg87foil said..
Will try and demo them to see what the craze is all about. But just curious to hear thoughts from people who really liked and mastered the 725, as it seems many found it too difficult to ride and therefore didn't really like it that much.
Prior to picking up the 580 and 680 my main foil was the 725 with the 525 being my bigger wave, higher wind foil. I'm 80kg riding a 58L FG board. After a good amount of time on the 580 and 680, I find the speed on both is significantly better when using a red shim. With the 180 tail and red shim, my peak speeds are basically the same as the 725 on the 580 and maybe 1-3km off with the 680. The 680 doesn't have quite the acceleration of the 725, but the 580 certainly does.
That said, both the 580 and 680 have such a ridiculously low stall speed (once on foil) and the turning is much more similar to the MA800 (you can turn super hard on a wave face without worrying about breaching).
To me, if you're riding surf, the newer HA are worth the upgrade. If you're mostly fast water blasting, they are easier to ride, but probably have less of an overall ROI in those conditions.