I don't really like biopace.. i just don't "trust" the technology, and I've read some things that suggest is it actually less efficient than normal round cranks. Unfortunately, right now I have a wide selection of BP rings, and no round ones.

I've heard claims that if you rotate the biopace rings by a few bolts, they are more efficient/effective. This is a suggestion I found:

Normal


Rotated


Has anyone done this? Are there noticeable results?