m0useanswered grow question 8 months ago I don't flush unless I have issues in the medium, end of life I stop feeding and only give water but not to the point it is washing out the pot 5 fold. its dumb. most if not all "evidence" for doing it is not backed by pear review and subject to extreme personal bias. The small ammount of pear reviewd stuff we do have on flushing all boils down to this, does not effect the taste or quality of buds, verified by measuring the contest and percentage of elements in the buds and double blind taste test panel with weed "connoisseurs".
In terms of chop. I'd say do it now, they look like they are ready.