Chad it all depends upon the airplane.

Usually a torque tube setup uses one servo in its application to control the ailerons with the servo being centered in the wing needs an inset of the torque rod in the aileron and the drilling of a pilot hole for the 90 degree rod which can get tricky in 1/8" stock. Whereas using CA hinges two servos are generally installed one in each wing controlled by using either a Y cord or two separate channels. Installing the CA hinges you will have to slot the aileron and wing side to install them which would probably be the better choice between the two systems from what you describe. Rounding the aileron stock where it meets the wing will allow freer hinging of the control surfaces. Other choices are small hinges which can also be slotted, the Robart system would be too large for the 1/8" stock.

Hope this helps tell us more about your airplane project.