You guys must make assumption of nice fresh soft grippy grommets.
I'm working with age-hardened brittle 20+yo plastics (nylon tube don't grip either)
or no grommet frames like MAX 200G, flaking paint slips even more.
With identical frames strung & left to mature for a few weeks, can't
detect difference with the 1 done with slighly tighter mains vs crosses.
I'm also not working with stiff polys, these can take a 'set' around bend
plus being less elastic would be less likely to equalise over time/use.