I have a Porper little shaver, works real well, you just have to be careful with it. Best tip is not to keep your tip super long.. thats my opinion
Be *very* careful with the Porper Little Shaver. (That's the one designed as a sharpened sleeve that you slip over the ferrule, then shave down the side of the ferrule towards -- and through -- the tip, into a little rubber "mat," to make the side of the tip flush with the ferrule.)
The dangers with the Porper Little Shaver are thus:
1. You can shave the side of the ferrule itself, if you're not careful.
2. You can pop your tip off, even against that little rubber mat included in the package.
The Porper Mushroom Grazer and Porper Cut-Rite tools are better, in that they're not stressing or pulling the tip away from the ferrule, but you run the danger of "pencil-sharpening" your ferrule because of their pencil-sharpener-like design. Tim describes it perfectly:
These are very good, but you need to be careful not to shave the ferrule, which is easy to do. I don't have high value cues, so don't care, but wouldn't advise using on a high value shaft or one you're intending to sell.
Practice with old/cheap shafts first.
Pat's mill file technique is better, and is the one I like to use. It doesn't place any "pulling away" stress on the tip's glue bond (as the Little Shaver does), but mill files are aggressive enough that you can remove the mushroom overhang in a hurry. You just need to be aware of how you're orienting the file, and have a steady hand to hold that orientation while you roll the cue. Anyone who has done tip maintenance for a while has this coordination to do this nicely.
Here's what I do:
1. Lay the shaft (by itself) on a flat surface like a table or counter.
2. Hold a fine flat file so its face is horizontal and resting on top of (the side of) the tip. Position it so only the tip itself is under the file (no overhang onto the ferrule).
3. Roll the shaft on the table/counter under your other palm while holding the file still, pressing the file onto the side of the tip. To be extra careful not to scratch the ferrule, tilt the file slightly toward the tip - this will make your tip slightly conical in shape, which will also help minimize future mushrooming.
4. Burnish.
pj
chgo
Additionally, some versions of Tip Tappers -- the ones that have
file teeth, and not knurl teeth -- can be used in the same way as a mill file. The file teeth versions are hard to get, since Lou Butera's website where he sold them (
http://tiptapper.net/) is now defunct.
Finally, the "el cheapo" way is to use a lady's manicure emery board (you can get a blister pack of a dozen of these at any grocery, drug, or convenience store for a couple dollars). They cut very quickly, and their small size / light weight means you can be very accurate with them.
-Sean