Nose alone: a reported permissive view of Abu Hanifah, but invalid without excuse for the two companions.
Turban or clothing under forehead: generally allowed under Hanafi conditions; Shafi‘i law requires direct forehead contact absent excuse.
Composure: differing Hanafi legal classifications and a stronger pillar classification in other schools.
Resting sit: omitted in the described Hanafi method; recommended in Shafi‘i treatment based on a transmitted report.