Tip Tool? Best? What I carry is a 2" x 2" Piece of 220 Sand Paper, and out use it about once in a very long time, to scuff up my tip. I Own a Willard & Tip Tapper but they most collect CASE DUST.
When my Shafts were new I applied Cue Wax, and do so when I can feel the Cue Wax is coming off. A Clean Soft Rag on the Shaft after days play, and clean hands during play KEEP SHAFTS CLEAN.
I am sure you have some 220 220 Sand Paper, at home if not a Sheet will cost less than a buck, and Old T-shirt make a great RAG.
NO NEED IMHO to spend on what is not nessessary. Did Willie Mosconi have a bunch of Gizmos? To play great?