In the brief original paper of VS [195], the hint that the authors
used higher-order expansions of the tension as a function of
is given. Here I present what I have found to be the most practical
implementation of such corrections. Some of this has been developed
through conversations with Vergini.
`Automatic' normalization was already presented in Vergini's thesis
[194]; the only new result I have added is the observation of
the power-law norm error growth.