hi there Bax, well got my 12z from tower on monday, i have been playing around setting my small 47" electric, and now i will do my 50cc and 100cc airplanes which i having problems.

to be especific on both giants i use 1 servo per elevator, so, should i select on the link menu,one elevatoror 2 elevators on the tail type. When im on the fuction menu, i get a little confuse of should i assing name of the channel 2because there is elevator and elevator 2, dont know if this can affect something in the radio programming.

About the subtrims..too much subtrims can affect the travel of the servo? i know it will, but is hard to get my servo arms at 90 deg. without sub-trims.

If you use one servo per elevator half, you can use a "Y" connector to have them operate off of one channel in the transmitter, you can use two channels and use a mixer, or use the built-in Ailevator function. With the Ailevator function, you match centering with the linkage first and subtrim last. You want to use as little subtrim as possible. You set the endpoints of one side with the Elevator AFR and the other side with the percentage of Ailevator travel.

If you use a lot of subtrim, it moves the center point but not the endpoints. You want to make the linkages such that you are as close as possible first, and then use as little subtrim as you can.

The most common way to set things up is to use the Ailevator tail type. Just ignore the names. They just tell you which channel is activating which half. Just put one servo on the Elevator channel, and the other servo on the Elevator2 channel.

thanks Bill, my problem is that i cant get my servo arms at 90 degress without using subtrims, is not matter how i play with my arms to use less subtrims. Everything else works perfect, im just trying to have everything as perfect as possible, at 35 deg. deflection on my elevators, i have 30 on one and 35 on the other one...so thats make me feel that there is something that im making wrong.

I have already redone my links, both has the same distance, servo arms at 90 deg. etc.

If you're using Futaba servos, they have an odd number of splines on the output shafts. If you can't quite get the output arms at 90 degrees, remove them and turn them 180 degrees. That allows them to line up.

If you're using non-Futaba servos, then you're stuck trying to get things lined up.