I agree that powertools can be a little "grabby" with minicell, But I have been sucessfull with a right angle grinder. You need to pay close attention to which direction the tool is turning and always pull the tool counter to that direction.

However, I too would like a small hand tool for final finish work. The japanese rasps are great with minicell as well as many other forms of "Rambo" carpentry.

: . I'm not familiar with the zig-zag japanese rasps,

: Imagine six (I don't remember the exact #) double sided hacksaw blades
: connected together with the 4 middle ones bent in a zig zag fashion. So it
: doesn't have big teeth like a rasp but it has big open spaces for debris
: to clear out. Doesn't grab and is very controllable. Mostly I find carving
: with that tool, curved surform and some sandpaper or dry wall sandpaper is
: all that's needed. I haven't found a way to use a power tool safely or
: with much controll when grinding minicell. Maybe Joe has some advice?