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* [http://brettanomycesproject.com/dissertation/pure-culture-fermentation/impact-of-pitching-rate/ Chad Yakobson's thesis] showed that WLP645, WLP650, WLP653, WY5112, WY5526, and WY5151 were not able to attenuate wort more than 50% within 35 days (these were pure cultures). BSI Drie was the only strain tested that was able to attenuate wort at levels similar to brewers yeast. All strains that he tested were able to utilize maltose, however some less efficiently than others. More time may or may not have resulted in further attenuation.
* [[Brettanomyces_Propagation_Experiment|Mark Trent's ''Brettanomyces'' propagation experiment]] tested his house strain of ''Brettanomyces'' (originally isolated from Orval), which fully attenuated wort under different different conditions within 6 days. So, there are strains that are faster fermenters, but they appear to be the exception to the rule.
* In general a broad selection of various ''Brettanomyces '' yeasts and a few months of time is a safe bet to make sure fermentation carries through.
==Questioning Conventional Wisdom==