BigB,
It might be easier to bend the offset before the 90º, especially if you're near the end of the tube. However, it might be easier to pull if you bend the ninety, and then put a kick into it. If you chose a suitably long distance from the 90º, you can achieve a fairly short degree of kick.
On another subject, Tony of Skelly showed me a random technique. He would bend the first bend to whatever he felt like. Then he would measure the desired offset from the floor to the pipe and mark it. I forget the details but he would place the bender in some relation to the mark and make the second bend. I would appreciate any clarification on this if any one has heard of it.
~Peter
