Correct file naming
E6.1 Clarify deviation only at high Reynolds no.
E6.2 Reference Sand-Jensen's drag force work
E6.3 Clarify exclusion of Cd-R effects
E11.2 Deformation depends on Cauchy no., not vice versa
E11.3 Explicitly state dependence of Cd on R and Cy
E11.4 Move artificially stiffened reference to Intro
E11.5 Clarify which approach it relates to