a) Check for mistakes in the assignment of the slidelines
that can potentially stretch nodal connectivity in such
a way as to significantly affect the frontwidth.
b) Try other frontwidth optimisers on the problem.
c) Reduce the number of elements and/or, if using higher
order elements, change to lower order
d) Use tied slidelines or constraint equations to abruptly
change the mesh refinement away from the area of interest
and, hence, decrease the number of elements
e) Use symmetry conditions where possible