I have foiled on and lifted 550 pound foil boats (Rave), and feel they are overbuilt- with 250 feet of sheets and adjustment lines
The problem with most foilers is the use of mechanisms to adjust the foils' angle of atack. They need excessive tuning and lines.
The Catri uses the boat's atitude instead and this simplifies the setup. It is a patented solution, though.
Luiz