full floating wristpins vs. pressed wristpins
If the style of clip that gets used looks like this (see pic) there is a right way and a less right way to be installed. Look really close to how the clip is made, there is a slight contour to it's shape, put the "rounded" surface towards the pin and there for the more "sharper" edge will face outward possibly helping preventing the clip from ever coming out. Also "clock" the end gap to the 12 o'clock or 6 o'clock position, this reduces the likelihood of the clip coming out due to the reciprocating forces being a factor.