Dating DEBRIS A-stars

Overplotting A stars from the DEBRIS list with the Schaller 1992 grid provides some interesting information.

Those A stars with published ages are represented by triangles whose color correlates roughly with the colorbar on the side. The DEBRIS stars seem to be in the wrong place. I'm not sure why this is...the rotational correction in Song et al. 2001 suggests a shift in age of about 100 Myr, but the DEBRIS stars are off by much more than that.