Tapeworm said:Yep, but overall power drops, when "pedalling in circles" (for the same metabolic cost).Some associated reading http://www.plan2peak.com/files/32_article_JMartinCrankLengthPedalingTechnique.pdf
Best just to go with what feels good. The belief that there is a magic style of pedalling or crank or whatever seems to be ingrained to cycling. Studies have found training, and lots of it, seems to have the best improvements to performance
This data is targeted primarily at sprints and their efficiencies.