It seemed to say MW's use of data gave a lower estimate of peak medieval warmth. (realclimate.org)
Proxy - based reconstructions of hemispheric and global surface temperature variations over the past two millennia, Mann et al, 2008; ``... The reconstructed amplitude of change over past centuries is greater than hitherto reported, with somewhat greater Medieval warmth in the Northern Hemisphere, albeit still not reaching recent levels.» (notrickszone.com)
«MW's inclusion of the additional poor quality proxies has a material affect on the reconstructions, inflating the level of peak apparent Medieval warmth...» (wattsupwiththat.com)