Bias ing your tricks can help you very much, but you should not use more than about 10 degrees (or a few feet)in either direction, and do move them in the correct direction, I see many pilots biasing in the wrong direction, which cause them a lot of trouble
The wingover, 8s, triangle, and hourglass should not be biased
Move them way out..25 to 40 degrees and you risk having walking ..or moving maneuvers, or loosing line tension , neither is good!
Randy