I've got a torque and I like it immensely, only $20 too. I got my father in law a torque LT with quick clips and thumb screws and he can hit the tip of his flagpole from 30 yards with 3/8" ammo. Squirrels fear him.
how do you make sure that you tie of the band at the same length as the one already attached, without measuring it? I imagine that it is important that the pouch is tight in the middle and that one band doesnt and up longer then the other?
If they are cut to the same length, this is not a problem with frames with clips as they only allow the bands to go in so far. For tie on frames, use a mark as a reference point on the frame and place the end of the band to that spot.