In a heavy Gazelle (AAC not RAF or RN) it was not uncommon to get to the left pedal stop during the run on but only because you had used more Nr to cushion the landing.
I agree that a faster run on, especially if a little too much lever is used to cushion, can leave you with forward speed and little Nr left to steer with - then you do need to lower the lever a bit to let friction do its job and accept the yaw.
On the Gazelle, the usual result of waggling the cyclic around during the run on was hitting the frange and having the p*ss taken in the crewroom later.