as it relates to HOOKING UP ONLY:

for what its worth, in my experience, as best I can recall, I seem to remember "rolling" more fish with double 4's ...

I believe without a doubt that the larger spacing of #2 vs. #4 btwn the point of the hook & shaft of the hook HELPS me hook up more ... Also, when I use the single # 2 less often (in fact hardly ever) do I get the feeling like I've had something touching it & try to get pressure on it & feel the little shake/roll & gone when I use the double 4's ....

also, I think that even when using the smallest corkies, I don't believe the barb of the 4's is out far enough beyond the outer radius ofthe corkie to effectivelly (consistently) allow the point of the hooks to touch enough of the fish to stick it....