# 1 Doesn't the DX-7 have servo match ?

First thing i would do is install 2 digital servos on the elevator then borrow
a programmer from a buddy, or purchase one and program the servos the SAME !!
1/8" up + 1/8" down is a difference of 1/2" total.
THAT'S (("more")) THAN A TAD OFF !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
are you sure the link is attached in the same hole ?

Then go to a Y harness.

# 2 You MUST use rudder for different speeds on the aircraft.
Pick a speed you like and adjust your motor's right thrust angle to match;
i use 2 degrees. when you speed up you'll need Less right rudder, when you
slow down, (( In the vertical)), you need More right rudder,because of More power.
Dead stick you should need O !

# 3 A wing WILL stall at ANY speed if you add Too much angle if attack.
The trick is to get them to stall at the same time.
Your elevator Must be evened out first,then check wing weight balance, and
last,( but Most importantly) the wash-out or wash-in at the tips Must be identical.
I posted that earlier on this page.

# 4 After you get the Y harness installed with two servos of Equal travel with the
same holes utilized on the links and balance is correct and wash-out at wing tip
is equal.Next i would install these to help cut down on the frustration a bit, Just
till the problems are worked out. This was posted on page 63 post # 1567
http://www.rcuniverse.com/forum/fb.asp?m=10185225

That's My recovered Extra with sheeted wings.
What these devices do is increase the effective span and increase the amount
of efficiency in the ailerons,and makes the wing LESS prone to a tip-stall, at the expense
of a Lil drag. That drag makes the airplane REAL stable.

These were made with 10mil Mylar.
You can't even see them when it is flying !

One another note:
My DLE-20 is installed and ready to fly, I'm just waiting for my AMA membership
card to arrive.

Bille