Making Z bends in control rods
I do the vice and hammer thing too, but I usually don't bother twisting the second bend to line up with the rod. There's no danger of it twisting out of the servo arm hole (unless your hole is simply way WAY too big), and (Bonus! ) if you have to, you can remove it from the servo arm without having to undo the connection at the other end.
Want the bend at a particular place? Practice on a scrap rod, mark it where it is at the edge of the vice. Do the hammer thing and see where the bend is in relation to the mark.
flianbrian