Time to flush advice

my winter grow on day 55 a flower. My pink Kush in 5 gallons of roots, organic soil, using advanced nutrients sensei line. I started bottom feeding when I was running into issues with watering and everything turned around for the best. Now I’m getting close to the end. I think I’m ready to start flushing, using advanced nutrients () flawless flush. Which from what I gathered only needs a week to flush. I plan on watering or flushing from the top bless the entire plant. I’m just looking for some advice if I’m heading in the right direction or if I’m jumping the gun and s should wait a little bit longer before I flush.!