Board Thread:Questions and Answers/@comment-6299840-20130209104653/@comment-1393830-20130209222241

Some characters are not as good with controlling their reiatsu as others. Ichigo has no control over his reiatsu. He has a ton of reiryoku, but no control over how he exerts it. Other people such as say Shunsui, have much less spiritual power, however they have great enough control over it that they can easily overcome an opponent with more reiryoku.