Monofilament vs Sealed Shakespeare Monofilament Nylon Fishing Line 700 Yds K-mart: which is safer?

Where these two actually differ

• We flag Microplastic shedding during use on the Ande and not on the Shakespeare.
• We flag UV degradation and brittleness, Nylon monomer residuals and leaching and Plastic fragmentation and microplastic shedding on the Shakespeare and not on the Ande.
• The Ande is Monofilament nylon fishing line where the Shakespeare is Nylon monofilament fishing line, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.