I'm using Yakima bars and J-racks.
viz:
tinyurl.com/5ahcaz
Load/unload times are quite short bco the two trigger snaps I use to secure the hull in the J-racks.
The red line is to keep it from creeping aft.
Four pluses that I perceive:
1) The Yakima system uses round bars, so whatever attachements are on
them can be folded flat when not in use.
2) The J-racks constrain the boat laterally so it cannot slide into a
position where it's pointing in some other direction that straight forward.
I've read reports that once a hull gets pointed away from
straight forward, bad things happen as the wind load on the hull spikes
and tries to point it even more away fromt the vehicle's direction.
3) Whatever compressive force is applied by snugging down the load straps
is applied at the gunwales - which I think (hope...?) are among the
strongest parts of the hull.
4) J-racks are not specific to a surf ski hull: they can hold loads of
different sizes/shapes/widths.
My chief concern is that I've never carried anything this long in J-racks - where it seems tb outside of the vehicle's slip stream. Asked a few who should know,
and they all said "No problem".... but it's still not intuitive to me.
Anybody care to comment on that concern?