Complex sentence: Although Polish Scouting by and large follows the traditions of the military in routines and dress, the look of the insignia may differ from group to group-some of them do not use shoulder straps at all, while others recently introduced a chevron system.
Split into simpler sentences: Although Polish Scouting is by and large militarized in traditions and outfit, the very look of the insignia may differ from group to group. Some of them do not use shoulder straps at all, while others recently introduced an chevron system.