May 1: start of week 10. Should be the final week of feeding before flush for 4/6 with 2 needing perhaps an additional week.
May 4: switched to water only for all 8 plants.
May 7: fed 4/6 Flawless Finish to start the formal flushing process, which should go for a total of ~10 days and daily waterings will alternate between water and Flawless Finish. Gave the remaining 2 water and will wait a few more days to add Flawless Finish to those in order to try and keep some nutes available.