On Jun 7, 9:06*pm, wrote:
I do not have direct experience with the Wing Rigger. *I have been
using the Cobra one man rigger with a Grob Speed Astir, an LS-8-18,
and an SZD-59 with total karmic harmony. *I prefer using a one man
rigger for many of the previously discussed reasons: *less damage to
plane from assistant's good intentions, more time to lube pins and
fittings since another person is not risking a hernia while holding
the wing, more freedom at the soaring site because I don't need
another person to rig or de-rig.

I use the Cobra system on gravel, dirt, and pavement. *Works very well
in all situations. *I have watched other people use the Wing RIgger
and have to say that i prefer the manual crank for elevation control
that the Cobra has over the gas spring system in the Wing RIgger.
However, that is only a matter of taste. *Both work great.

Guy

One of the good things you seldom hear about one-man riggers is the
ease with which the wing spigot pins go in. With the wing balanced on
the rigger, there's little weight on the root so the spar and pins
just sort of float/slide in. Otherwise, there's a lot of weight
riding on those pins as you try to slide them in. That has to mean
less wear.