The kaumi gator grip (tip tool) is not a shaper, or even similar to any other scuffer out there. It has a laser etched grid of really fine stainless steel teeth that "fluff" the surface of your already shaped tip, basically doing the job of a scuffer without removing material. Also, it will never wear out as a result. So contrary to many people belief, it makes your tips last way longer. After investing so much money in Kamui tips I cant imagine using a willard shaper/scuffer every time you needed to get a new surface on your tip. Of course, this is just my opinion, but I use mine all the time and my tip stays just like new months later.
Expensive, yes. Worthless, not even close.
I think it's the best thing since sliced bread. You can shape with it, which removes a very fine powder from the tip and doesn't tear it all up. But the best part is when you roll it over your tip to condition the surface. The etched grid is composed of little circles with tiny raised dots in the middle of each one. They grab the very outside surface of the tip, pulling up tiny fibers without removing them. This allows the chalk to stick real good without removing any material at all.
Notice I said roll the tool over the tip, not the other way around. I put the butt on my toe and rock my wrist in an arc while very slightly rotating the cue after each movement. The cue butt never touches the floor. You can "rock and roll" before every rack if you want, because it just doesn't wear your tip away.
I don't use it because I'm trying to save money on tips. I got a whole bag of UltraSkins and I'm still on the first one after many months of use. When this one wears out eventually, I'll just grab another $3 tip and install it. The only reason I use it is that it is the best thing out there IMO.
BTW you don't have to spend that kind of dough for a Kamui branded one. I got mine from some carom guys at SBE last year for about $12. I'm not sure if they have a booth this year, but this is the one I use, and you can get it sent from across the pond from these guys. It's the same freakin' thing that Kamui uses in theirs.
http://store.kozoom.com/uk/carom_billiards/hanbat-cue-tip-sanding-block.html
No fancy teak case with silly magnets, just the etched surface you need, glued onto a thick plastic backing. Mine look like this:
EDIT:
In looking at my Hanbat tool I noticed that the backing is actually made of wood rather than plastic. Doesn't make it work any different, just wanted to dispel any notions that it may be a cheaply made tool. It is real nice for the money, and will last for a very long time in use.