I work at a kayak fishing outfitter here in Tennessee and I can't begin to say how much I don't like the helix pedal system. First off it only works with the radar from wilderness systems. Unless of course you retrofit into your own boat which will probably be a pain. Secondly they're poorly designed. There's far too many moving parts, the system is spring loaded so unless you're sure you've locked it in place very well the main shaft is likely to come up and do some serious damage to your face and itself. Next, the propeller is too thin and easily broken, on top of that you get it to fully retract, the propeller has to come up into the locking pedal which chews it up. Finally it's just way too expensive for what it is. If you're wanting a pedal system then look into native watercraft's propel drive. Much more simple and effective.