I only use #1 & #5 ... and both for casting, Pushing, and "flipping" (Livescope fishing) ... and every once in awhile I may even Longline a single rod with them. #1 is always with a plastic body, but #5 can be with a plastic body or the actual Road Runner marabou jig.
While I do have a small collection of Road Runner heads & Road Runners with plastic bodies (pkg'd that way), I've yet to actually use them ... so far. I've mostly relied on the marabou version, but do plan on incorporating the others into my Pushing arsenal ... whenever that method is warranted.