I still like doing 4-8 sets for arms at times. Right now I'm not able to do events as much (which hit my arms a lot) so I am doing more and more gym work to compensate.
For bodybuilding...I always did 3-4 sets of flat bench (1 to failure), and 2-3 sets of incline (1 to failure), and usually one more exercise for 1-2 sets (1 to failure). Worked pretty good for me.
PLEASE...just remember that YOUR ideas are not always the CORRECT ones and they are NOT FACTS!!!! I'll go ahead and say that mine are not facts either...ther are very few givens or facts in training.
B True