As you said, lots of good threads on this.

But one thing I haven't seen mentioned, but I have seen done, and now do myself. Go to a hardware store and get some "no skid" meant for stairs or floors. It's kinda like sticky backed sandpaper, but a lot more durable than sandpaper. Figure out where you are comfortable holding the plane, then stick some scraps of this stuff on the fuse there.

You can even paint over it's default black color, and it still provides a darn good grip.

I use an underhand toss, so I put the no-skid just in front of the wings, on either side of the fuse, about where my fingers wind up. I put it on before painting.

It really makes the plane MUCH easier to throw.