Hot take: stop stretching carpet with a knee kicker on stairs, it's wrecking your power stretcher work
I see guys kick the whole staircase in and then wonder why the hall seam pops loose 3 months later. You still need a power stretcher up top and a stair tool on the nose, so what's your go-to setup for keeping tension right on a full flight?
Ah yes, the classic "kick the whole staircase in and pray" method. I love watching a guy pound 14 risers with a knee kicker like he's trying to break concrete, then act shocked when the seam at the top of the stairs lets go. That kicker only pushes so much stretch, and by the time you hit the landing you've got zero tension left up there (which is exactly where the hall seam lives, of course). I run a power stretcher off a deadman on the top landing and work down, then stair tool the noses so they don't lip. Kicking your way up a flight is just pre-loading a callback.