Hi Hollywood,
So far the pick works ok for me and a couple of my friends who use them
Managed to rake 5-pin deadbolts, doorknob locks, pick 6-pin padlocks using them. Also can used it quite successfully on wafer camlocks found in office drawers and cabinets. But for smaller keyholes, it might pose a problem, yes.
Below u can gauge the relative thickness of the pick in comparison with a padlock:
