I had a few lighter wire, heavy bodied spinnerbaits that would break right behind or at the R bend. If I got one back with a broken off blade section, or if one broke when I was tuning it after a fish, that's when I made the chatterbaits out of them.
They used the lighter wire on only their deeper runners, for some reason.
It sucked, but they caught fish.
I don't think the chatterbaits with the longer wire catch more fish, at least the ones I've made. In fact, since I throw them in off colored water, or over submerged grass, I think having the vibrating blade removed somewhat from the lure is a liability, since the fish hone in on the vibration. And the longer wire catches more grass because the bait hangs down deeper, at least for me.