Finger scanner

Does anybody else don’t use finger scanner for stow? I hate it because my fsaf error are getting affected and sometimes it won’t register inputs. The learning person always bich about me not using the finger scanner but when my fsaf error decreases they just let me be lol. So i just stow with only the zebra device getting about 380-400 units per hour stowed with 1-2 mistakes during 3.5hrs of stowing.