This is dear to my heart. An important consideration when running conduit is the realization that at some point in the future you will have to pull wires into it. Therefore steps should be taken to ease this impending task. For instance, consider using 22.5º degree bends instead of 30º. Or even better use 10º bends if you can get away with it. The formula for 22.5º is multiply by 2.6. For 10º use 6" for every 1" of desired offset.
Another thing to try is what is known as the super bend -- that is using a larger radius than the standard one shot. This is for 90º. To make it you use your bender like a hicky -- you advance it in small steps and bend the tube at small angles at each step.
45º bends are a killer.
Try to plan your runs to minimize the degree count. For instance instead of 90ºing up out of a box, instead use a 12" offset. This will save 30 to 45 degrees.
If done properly, it should be possible for one man to push the wires in [solid] instead of two to push and pull and chatter.
~Peter
