I assumed he meant the weight was IN the frog. . .t rigging a frog huh? Lol. Did you see him catch any fish on it?
I've added suspendadots to hard baits to make them sink or rise faster or slower. . .but that's it. Putting a bullet weight in front of a hard bait doesn't sound like a very good idea. . .
Sorry for the confusion, but he actually had a small bullet weight right above the eye where you tie on the from. He was fishing a booyah poppin pad crasher frog. He then had a bobber stopper on to keep the weight from sliding, just as you would if your flippin or punching.
He did catch several fish, and it did seem like the action was not affected. It just allowed the frog to come through cover and still make the pop sound a little better I guess.