I am very new to the sport, less than 2 months.  I built a Zagi for my first
ship on the recommendation of a friend.  That is the ship everyone uses for
combat where I fly in the bay area.  

Well I finished it on a Tuesday flew it twice that week before I went down
south to visit family for Mother's Day weekend.  Ok, I was visiting my mom.
Well, I was anxious to fly after having done it twice the week before and
went on the internet to find a place to fly.  Well, after finding a phone
number of a local club member I was on my way to Parker Mtn.  There I met
Pat Bowman and another guy named Joe who everyone seemed to revere.  I think
it was Joe Wurtz, but I am not sure.  There was some guy filming Joe DSing a
three meter and another guy with a speed gun reading out the speed in the
loops.  Max was 157Mph averaging 140Mph.  They said the film will be done in
the fall sometime.  Funny story about the 3meter plane.  Joe noticed a
little extra dihedral in the wing while he was flying, well when he
flattened out the plane to come in for a landing, the wings fell off and the
plane became a huge lawn dart going off in the distance.  He broke the spar
in half, but the tension of the flight kept it flying for quite sometime.

Anyway, back to the wings.  There were a lot of people out there that
weekend and several were flying Sonics.  Everyone said it was the best DSing
wing out there and would fly circles around the Zagi.  I am sure they were a
little biased since Pat was standing right there, but I watched as those
wings flew round and round.  Being only my third day flying, I decided not
to try the DSing thing then.  As fast as those planes were going, I would
have killed someone.

I went back down there two weeks ago with my new Sonic and now old Zagi and
tried to do some DSing.  The wind was blowing much stronger than the last
time I was down there and the rotor seemed to go further down the hill.  The
Zagi was getting knocked around quite a bit by it and if you didn't come in
just perfect with plenty of speed, it seemed to stall easier too.  The sonic
was built for this type of flying.  It carved through the back rotor much
cleaner than the Zagi and retained better speed through-out the maneuver.
Since it was a clean airfoil it came through with a deep howl instead of a
light whistle you usually hear from a plane passing by.  It was pretty cool.

Now since this was my first time trying it, I was coming out more in front
than the people I had witnessed previously.  Also, one of the guys there had
said it was also tough conditions to fly in since the rotor was pretty
strong and it was difficult to get real low without being thrown into the
ground!  You know, I thought I had hit the ground hard while flying combat,
but that is NOTHING compared to a DS crash!

To compare the two airfoils, it seems to me that the Zagi has a better
recovery rate and on my plane a better roll rate than the Sonic.  The Sonic
has much better elevator response and can fly in lighter conditions than the
Zagi.  Be careful though, although it can fly in lighter lift, it does
tip-stall easier too, so there is a fine line.

Anyway, that is just my story.

Jim

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