If they are local, why not go there and try out a pair?
I've used nothing else since they hit the market and
were reviewed in Soaring back in the mid-80s. They
can even do tri-focals! You can probably find Serengetis
locally, also. Try them both before you decide.

At 17:18 14 September 2007,
wrote:
I have heard from time-to-time that Sun Tiger sunglasses
work well for
soaring. Since I fly within 30 miles of the 1/10th
busiest airport in
the world, anything that will increase my chances of
seeing another
aircraft is something I want to take advantage of.
It also turns out
that Sun Tigers are local, and not particularly expensive.
Opinions either pro or con are welcomed.
Thanks,
Jim