Ocean Monkeys straight leashes are designed for surfing SUP’s as if you come off of the board you want your board further away from you with a little less aggressive re-coil when at speed.
Coiled leashes keep the leash out of the water and in lab conditions reduce drag.
Is This The Leash For You?
If you’re a surfer first then yes you probably want the straight leash. In terms of the safety aspect the lack of recoil will just save you dodging your sup board at speed. And allow you a little more uninterrupted movement on your board.