Hi,

There are two ways of doing this properly. If your Tx supports the function for dual elevator servos then use it. Otherwise you have to buy a servo reverser. Here's one:

http://www2.towerhobbies.com/cgi-bin/WTI0001P?&I=LXANF2

Here's a cheaper one, but it does not have the centering adjustment that the first one has:

http://www2.towerhobbies.com/cgi-bin...&I=LXAFN1&P=ML

I already got the first one for my UCD 60

Serafim