The last time I cut myself as a result of opening (or in this case, closing) a folding knife, it was with a lockback. It was a Moki folder with a very sharp VG-10 blade, and it took a divot out of my finger with just the little bit of light closing snap that 'should be' (but wasn't) safer for my fingers, as compared to a slipjoint.
The light opening pull of a lockback can definitely be easier to manage, as compared to many slipjoint knives. But, as regards the closing snap, I tend to equate the lighter (and allegedly 'safer') closing snap of a lockback with a dangerously false sense of security. The only way to make it 'safe' when opening or closing, is to do it in such a way as to keep the fingers entirely out of the way.
Small lockbacks with very stiff or stubborn-to-unlock locks can themselves be tricky to handle, as there's not a lot of grip on real small ones, and with a stiff lock, can be difficult to disengage safely. I've had some small (& especially narrow) ones try to twist sideways when attempting to disengage the lock, which usually results in a loss of control & grip on the handle.
When I close a slipjoint, I have all fingers of the hands to the spine side of the blade (edge UP) and on the SIDES of the handle, and I lever the blade to 1/2 closed by pressing the spine against the base of my (right) index finger, just above the knuckle, with the thumb and middle finger of my right hand gripping the sides of the handle just below the bolsters at the pivot end. When the blade is at 1/2 closed, I pinch it with my (right hand) thumb and index finger and close it the rest of the way, with all of my (left hand) fingers still gripping the SIDES of the handle. Done this way, there's literally no way to cut myself, as there are no fingers or knuckles in the path of the closing blade.
David