I had the following installed:

hoerner wingtips (and the installer obviously didn't know what he
was doing, but at the time, neither did I),
flap gap seals (good install job)
aileron gap seals (another good install job)

the difference? on the checkride, even the DE couldn't get the
cherokee to stall (power-on stall). After 3 tries by me, he took
over. I think we were at 30 deg. nose up when he decided it wasn't
worth anymore time or effort.