As far as I know there are three generations (there may be others that I don't know of
).
- The older Wenger scales attach to embossed clips on the liners.
- The newer Wenger scales attach the same way as Victorinox scales (except on one side there are no collars, instead the pin head has the required shape to attach the scales) but they wrap around the liners. All the Evo scales I've encountered attach this way, but some flat scales do as well.
- The Vic Delémont attach the same way (obviously) but the scales don't wrap around the liners.
As long as you have compatible scales, the techniques used for Victorinox scales (heating an careful lifting to pop out the scales) apply.