Puff Kill Percents as Fox for Dummies

Stages in order from lowest ceiling to highest ceiling:
YS < PS < FD << BF < FoD <<<<<<< DL

In terms of how fox kills on each of these stages, YS + PS + FD are very similar. BF + FoD are almost identical. DL requires the highest percent by a large margin.

General way to predict kill percents:
YS/PS/FD - Uthrow uair kills at around 50-52% before the grab. Add ~5% for upsmash kill

BF/FoD - Uthrow uair kills at around 55% before the grab. Add ~5% for upsmash kill

DL - Uthrow uair kills at around 68% before the grab. Add ~5% for upsmash kill

Uthrow uair stops working at 111% before the grab, but realistically it stops around low to mid 90s.