Board Thread:Questions and Answers/@comment-93.137.138.24-20130612085617/@comment-93.137.138.24-20130612132451

Youre right, actually if i stack 3 or more speed dramatically boosts up. Also stone pipe is much better than cobblestone for speed boost.

I confirm no redstone signal is required so either wiki should be update or this is a bug and must be fixed.