in NG+ you obviously get to start with all 48 shards so i'm curious which would be the best for running. some exceptional ones i've noticed are

• one free fright
• hydrophobia
• slide tackle
• embrace items
• sure footing (more a recovery tool to save time if you take a hard fall)
• fire slide
• lullaby (specifically for the bobcat cave)
• bubble rider (im not sure where this comes into use but it is a speed increase)

would it be optimal to switch out shards between certain levels, given it saves enough time to account for the swapping?

i will keep looking into shards before i try my first full ng+ run