Set #1 Simple Crimps offer about 1/4" inch of room to dig into. It is the most difficult set in this series. It is the "crease" on the plate that you are crimping down on. There is a variety to each design of these rock wall holds. Most have a positive incut, but a few are flat to barely incut, and one is slopey.
If you set with these on vertical, expect V2 feeling holds.