With a facelift version, I have no string to pull, so couldn't say for sure. Based on how the lock mechanism works, it will take a firm steady pull for some time, you should feel it slowly give, takes about an inch of travel or a bit more, not including any stretch. You are essentially pulling on the rack of a small rack and pinion device, and the little pinion the rack spins is attached to a decent sized motor. That's why it'll only move slowly, and takes a firm pull. Mechanically, it's like trying to spin up a bicycle wheel by manually pulling on the chain while it's on the smallest cog.