Personally, I'd just use mono as the leader. But, if you think you need fluorocarbon .... backing off the drag will compensate for the lack of stretch.
Curious though ... where on the fluorocarbon leader is the break occurring ?? With braid/fluoro combo, why are you setting the hook with very much power (both are low stretch lines) ??
I do have one outfit rigged with 10lb test hi-vis braid and the braid is tied directly to the jig ... stiff 7' rod ... and I don't "set the hook" by jerking the rod, but just sweep the rod about a foot as I continue to reel. (this outfit is used solely for casting)