Perhaps he meant pics he previously posted in this thread.
I have used my slappers both properly and improperly by the description of technique given. Call me a hack, I won't say it ain't so. Most often I use a light duty one as a hammer, off or near a dolly. Sometimes I lay it on the metal unsupported and strike the spoon with a hammer for more accuracy. Heck, I used one of my light spoons during a unibody pull somehow and flattened out the curve inadvertently in doing so. Since, it has proven useful to have one of them a little less curved than the other.
Earlier I was asking if you guys had tried a shrinking tip on a regular stud gun. Still curious about that. It seemed to be a big help for me during the early years of my dent fixing.