No, Larry ... the clip of the bobber is attached to the 3way swivel eye --- the leader line is on a seperate eye (tied directly to swivel) --- main line is tied to the third swivel eye.
You won't kink, nick, or stress braid with a clamp-on bobber ... but, the bobber will slip on braid. To keep that from happening, the braid is usually wrapped several times around the bobber clip. But, even so ... the dynamics of the cast can cause the line to come off the bobber clip (or so I'm told)

All the 3way swivel users are doing, is using the swivel as the center point of the rig. Main line comes from rod to swivel - bobber is clipped to swivel eye - leader line runs from swivel to jig. There is NO line used to attach the bobber to the swivel ... it's just clipped onto the ring eye of one of the three ring eyes of the swivel. And I don't think they use a very large 3way swivel, either ... you have to take into account the weight of the swivel AND the jig, when using a counter-weighted bobber.
At least, that's my understanding of the how & why of using a 3way swivel.

.... cp