I have seen the word 'Overlifter' in throwaway lines on the site but never come across a definition. It seems to be used in relation to lever locks.
How do these compare to 2 in 1, or curtain picks? I can imagine that 'overlifting' a lever and letting it fall may be a technique involved in lever picking, perhaps to avoid anti-pick notches, but why would a different tool be needed.
If this is not a topic for the open forum sections, then please take appropriate action, Mr Moderator. I'm guessing though that this is just a UK topic and that's why I can't find this info anywhere.