On Lunkerville yesterday was a Native Mariner
pedal-powered yak, as well. But those are now
discontinued, I believe.
The Slayer uses a newer pedal system than its
brother yak, Mariner. More efficient.
As a mechanical system, the leg-powered yaks
from Native and Hobie have benefits and issues
to be aware of. So do a good deal of research
before you drop the cash.
Also, there are some Hobie-sponsored yakkers
on the forums that can answer some questions,
don't think there are any Native sponsored folks.
Bottom line, Google the topic, the pros/cons and
form your own opinion.