One way to connect the two wires is to wrap the copper wire and rods together then solder over the wire to secure them! The trick is to get both of the end wies the same exact amount BEFORE you apply solder!!! AS for the question about if the servo is off center, you are sort of correct but the amount that it will matter will be very small! In a .40 size airplane it won't make much difference, unless it is extremely off center. Even then, if you attach the pushrod to the servo arm then bend the pushrod for it to travel down the middle of the fuse, then no problem at all!!! More care should be taken to ensure that the 2 "Y" end rods will make both elevator halves travel the EXACT same distance from center.